$(document).ready(function()
{ // run when page is loaded

  // prevent enter/return key from submitting the form
  $('input, select').bind('keydown', function (e) 
  {
    var keyCode = e.keyCode || e.which;
    if(keyCode === 13) 
    {
      e.preventDefault();
      $('input, select, textarea')[$('input, select, textarea').index(this)+1].focus();
    }
  });
  
  $( function() {
		$( "#accordion" ).accordion({
			heightStyle: "content",
			collapsible: true,
			active : 'none'
		});
  });

  // set up date picker
  $('.dates').datepicker();

  // set up input functions
  $('#em_code_reported').change(function() 
  {
    chart.changeCodeReported();
  });  

  $('#encounter_type_picker').change(function() 
  {
    chart.changeEncounter();
  });

  $('.time-group').change(function() 
  {
    chart.calcTimeBased();
  });

  $('#hpi_type_none').change(function() 
  {
    chart.showNotes();
    chart.calcHPI(0);
  });

  $('#hpi_type_chronic').change(function() 
  {
    chart.showNotes();
    chart.calcHPI(0);
  });
  
  $('#hpi_type_elements').change(function() 
  {
    chart.showNotes();
    chart.calcHPI(0);
  });
  
  $('.hpi-group').change(function(event)
  {
    chart.calcHPI(event.target.id);
  });

  $('.ros-group').change(function(event)
  {
    chart.calcROS(event.target.id);
  });

  $('.pfsh-group').change(function(event)
  {
    chart.calcPFSH(event.target.id);
  });
  
  $('.exam-group').change(function(event)
  {
    chart.calcExam(event.target.id);
  });

  $('.e95ba, .e95baD, .e95os, .e95osD').change(function(event)
  {
    chart.calcExamCalc95(event.target.id);
  });

  $('.e97con, .e97eye, .e97ent, .e97neck, .e97resp, .e97card, .e97chest, .e97gastro, .e97geni, .e97lymph, .e97muscu, .e97skin, .e97neuro, .e97psych').change(function(event)
  {
    chart.calcExamCalc97(event.target.id);
  });

  $('.dxtx-group').change(function(event)
  {
    chart.calcDxTx(event.target.id);
  });
  
  $('.data-reviewed-group').change(function(event)
  {
    chart.calcDataReviewed(event.target.id);
  });

  $('.risk-group').change(function(event)
  {
    chart.calcRisk(event.target.id);
  });
  
  $('.use-result').change(function(event)
  {
    chart.updateOverallResult()
  });
  
  $('#sos_exams_container :input').change(function() 
  {
    chart.gradeSOSExam();
  });  
  
  // setup the page based on current data
  chart.initPage();

});  // end document ready


// create chart object
var chart = (function($) 
{

  // (don't "var" any of these in the functions or they will only be local to the function)
  var hpi = 0;
  var ros = 1;
  var pfsh = 2;
  var historyScore = 0;  // final component
  var examScore = 0;  // final component
  var dxtxScore = 0;
  var dataReviewScore = 1;
  var riskScore = 0;
  var mdmScore = 0;  // final component


  function initPage()
  {
    
    // run setup functions as solo (so they don't keep calling the other functions they normally call
//    changeCodeReported(true);
//    showValidCode();
    changeEncounter(true);
//    showValidCode2();
    calcTimeBased(true);
//    showNotes(true);
    calcHPI(0, true);
    calcROS(0, true);
    calcPFSH(0, true);
    calcHistoryResult(true);
    calcExam(0, true);
    calcDxTx(0, true);
    calcDataReviewed(0, true);
    calcRisk(0, true);
    calcMDM(true);
	gradeSOSExam(true);
    calcOverall(true);
    updateOverallResult();
  }  // end function initPage
  
  
  function changeCodeReported(solo) 
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    var emCodeReported = $('#em_code_reported').val();
    emCodeReported = emCodeReported.trim();
    if (emCodeReported)
    {
      $('#em_code_reported').val(emCodeReported);
      var encounterType = '';
      var validCode = 'yes';
      switch (emCodeReported)
      {
        case '99201': encounterType = 'office_new'; break;
        case '99202': encounterType = 'office_new'; break;
        case '99203': encounterType = 'office_new'; break;
        case '99204': encounterType = 'office_new'; break;
        case '99205': encounterType = 'office_new'; break;
        case '99212': encounterType = 'office_est'; break;
        case '99213': encounterType = 'office_est'; break;
        case '99214': encounterType = 'office_est'; break;
        case '99215': encounterType = 'office_est'; break;
        case '99221': encounterType = 'hospital_new'; break;
        case '99222': encounterType = 'hospital_new'; break;
        case '99223': encounterType = 'hospital_new'; break;
        case '99231': encounterType = 'hospital_sub'; break;
        case '99232': encounterType = 'hospital_sub'; break;
        case '99233': encounterType = 'hospital_sub'; break;
        case '99241': encounterType = 'consult'; break;
        case '99242': encounterType = 'consult'; break;
        case '99243': encounterType = 'consult'; break;
        case '99244': encounterType = 'consult'; break;
        case '99245': encounterType = 'consult'; break;
        default: encounterType = 'office_new'; validCode = 'no'; break;
      }
      
      // set encounter_type and valid_code value
      $('#encounter_type').val(encounterType);
      $('#encounter_type_picker option[value='+encounterType+']').attr('selected','selected');
      $('#valid_code').val(validCode);
      showValidCode();
    }

    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      changeEncounter();
    }
    
  }  // end function changeCodeReported


  function showValidCode()
  {
    
    var emCodeReported = $('#em_code_reported').val();
    var validCode = $('#valid_code').val();
    if (emCodeReported && validCode == 'no')
    {
      $('#em_code_invalid').show();
    } else 
    {
      $('#em_code_invalid').hide();
    }
    
  }  // end showValidCode


  function changeEncounter(solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    var emCodeReported = $('#em_code_reported').val();
    var encounterType = $('#encounter_type_picker').val();
    $('#encounter_type').val(encounterType);
    var timeCodeTimes = '';
    var validCode2 = 'no';

    // hide all history and overall tables, then show the appropariate encounter-based
    $('.history-table').hide();
    $('#history_grid_'+encounterType ).show();
    $('.overall-table').hide();
    $('#overall_grid_'+encounterType ).show();

    // set and update encounter-based code displays
    switch (encounterType)
    {
      case 'office_new':
        timeCodeTimes = '<b>Time Requirements</b><p>99201 = 10 minutes<br />99202 = 20 minutes<br />99203 = 30 minutes<br />99204 = 40 minutes<br />99205 = 60 minutes</p>';
        $('#exam_level_1').html('99201');
        $('#exam_level_2').html('99202');
        $('#exam_level_3').html('99203');
        $('#exam_level_4').html('99204/99205');
        validCode2 = in_array(emCodeReported, ['99201', '99202', '99203', '99204', '99205']) ? 'yes' : 'no';
        break;
      case 'office_est':
        timeCodeTimes = '<b>Time Requirements</b><p>99212 = 10 minutes<br />99213 = 15 minutes<br />99214 = 25 minutes<br />99215 = 40 minutes</p>';
        $('#exam_level_1').html('99212');
        $('#exam_level_2').html('99213');
        $('#exam_level_3').html('99214');
        $('#exam_level_4').html('99215');
        validCode2 = in_array(emCodeReported, ['99212', '99213', '99214', '99215']) ? 'yes' : 'no';
        break;
      case 'hospital_new':
        timeCodeTimes = '<b>Time Requirements</b><p>99221 = 30 minutes<br />99222 = 50 minutes<br />99223 = 70 minutes</p>';
        $('#exam_level_1').html('N/A');
        $('#exam_level_2').html('N/A');
        $('#exam_level_3').html('99221');
        $('#exam_level_4').html('99222/99223');
        validCode2 = in_array(emCodeReported, ['99221', '99222', '99223']) ? 'yes' : 'no';
        break;
      case 'hospital_sub':
        timeCodeTimes = '<b>Time Requirements</b><p>99231 = 15 minutes<br />99232 = 25 minutes<br />99233 = 35 minutes</p>';
        $('#exam_level_1').html('99231');
        $('#exam_level_2').html('99232');
        $('#exam_level_3').html('99233');
        $('#exam_level_4').html('99233');
        validCode2 = in_array(emCodeReported, ['99231', '99232', '99233']) ? 'yes' : 'no';
        break;
      case 'consult':
        timeCodeTimes = '<b>Time Requirements</b><p>99241 = 15 minutes<br />99242 = 30 minutes<br />99243 = 40 minutes<br />99244 = 60 minutes<br />99245 = 80 minutes</p>';
        $('#exam_level_1').html('99241');
        $('#exam_level_2').html('99242');
        $('#exam_level_3').html('99243');
        $('#exam_level_4').html('99244/99245');
        validCode2 = in_array(emCodeReported, ['99241', '99242', '99243', '99244', '99245']) ? 'yes' : 'no';
        break;
    }
    $('#time_codes_times').html(timeCodeTimes);
    
    // set valid code and show message
    $('#valid_code2').val(validCode2);
    showValidCode2();  
    
    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      // recalculate encounter-based elements
      chart.calcTimeBased();
      chart.calcPFSH();
    }
    
  }  // end function changeEncounter


  function showValidCode2()
  {
    
    var emCodeReported = $('#em_code_reported').val();
    var validCode2 = $('#valid_code2').val();
    if (emCodeReported && validCode2 == 'no')
    {
      $('#em_code_invalid2').show();
    } else 
    {
      $('#em_code_invalid2').hide();
    }
    
  }  // end function showValidCode2


  function calcTimeBased(solo)
  {
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    var encounterType = $('#encounter_type_picker').val();
    var time1 = $('#time_1').prop('checked');
    var time2 = $('#time_2').prop('checked');
    var time3 = $('#time_3').prop('checked');
    var timeMinutes = parseInt($('#time_minutes').val());
    var timeCode = 'N/A';
    var timeRequired = '';
    if (time1 && time2 && time3 && timeMinutes>0)
    {
      // based on encounterType and # of minutes
      switch (encounterType)
      {
        case 'office_new':
          if (timeMinutes>59)
          {     
            timeCode = '99205';
            timeRequired = '(60 minutes)';
          } else if (timeMinutes>39)
          {     
            timeCode = '99204';
            timeRequired = '(40 minutes)';
          } else if (timeMinutes>29)
          {     
            timeCode = '99203';
            timeRequired = '(30 minutes)';
          } else if (timeMinutes>19)
          {     
            timeCode = '99202';
            timeRequired = '(20 minutes)';
          } else if (timeMinutes>9)
          {     
            timeCode = '99201';
            timeRequired = '(10 minutes)';
          }
          break;
          
        case 'office_est':
          if (timeMinutes>39)
          {     
            timeCode = '99215';
            timeRequired = '(40 minutes)';
          } else if (timeMinutes>24)
          {     
            timeCode = '99214';
            timeRequired = '(25 minutes)';
          } else if (timeMinutes>14)
          {     
            timeCode = '99213';
            timeRequired = '(15 minutes)';
          } else if (timeMinutes>9)
          {     
            timeCode = '99212';
            timeRequired = '(10 minutes)';
          }
          break;

        case 'hospital_new':
          if (timeMinutes>69)
          {     
            timeCode = '99223';
            timeRequired = '(70 minutes)';
          } else if (timeMinutes>49)
          {
            timeCode = '99222';
            timeRequired = '(50 minutes)';
          } else if (timeMinutes>29)
          {
            timeCode = '99221';
            timeRequired = '(30 minutes)';
          }
          break;
          
        case 'hospital_sub':
          if (timeMinutes>34)
          {
            timeCode = '99233';
            timeRequired = '(35 minutes)';
          } else if (timeMinutes>24)
          {
            timeCode = '99232';
            timeRequired = '(25 minutes)';
          } else if (timeMinutes>14)
          {     
            timeCode = '99231';
            timeRequired = '(15 minutes)';
          }
          break;
          
        case 'consult':
          if (timeMinutes>79)
          {
            timeCode = '99245';
            timeRequired = '(80 minutes)';
          } else if (timeMinutes>59)
          {
            timeCode = '99244';
            timeRequired = '(60 minutes)';
          } else if (timeMinutes>39)
          {     
            timeCode = '99243';
            timeRequired = '(40 minutes)';
          } else if (timeMinutes>29)
          {     
            timeCode = '99242';
            timeRequired = '(30 minutes)';
          } else if (timeMinutes>14)
          {     
            timeCode = '99241';
            timeRequired = '(15 minutes)';
          }
          break;
      }
    }

    // display value
    $('#time_code_display').html(timeCode);
    
  }  // end function calcTimeBased


  function showNotes(solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // set hpi type
    if ($('#hpi_type_none').is(':checked')) 
    {
      $('#hpi_none_div').show();
      $('#hpi_chronic_div').hide();
      $('#hpi_elements_div').hide();
    }
    if ($('#hpi_type_chronic').is(':checked')) 
    {
      $('#hpi_none_div').hide();
      $('#hpi_chronic_div').show();
      $('#hpi_elements_div').hide();
    }
    if ($('#hpi_type_elements').is(':checked')) 
    {
      $('#hpi_none_div').hide();
      $('#hpi_chronic_div').hide();
      $('#hpi_elements_div').show();
    }
    
    // show all notes divs for checked elements
    if (solo)
    {
      $('.hpi-group').each(function() 
      {
        if ($('#'+this.id).is(':checked'))
        {
          $('#'+this.id+'_div').show();
        }
      });
      $('.ros-group').each(function() 
      {
        if ($('#'+this.id).is(':checked'))
        {
          $('#'+this.id+'_div').show();
        }
      });
      $('.pfsh-group').each(function() 
      {
        if ($('#'+this.id).is(':checked'))
        {
          $('#'+this.id+'_div').show();
        }
      });
    }
    
  }  // end function showNotes
  
  
  function calcHPI(elementID, solo)
  {

    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // show/hide notes area
    if (elementID)
    {
      $('#'+elementID+'_div').toggle();
    }

    hpi = 0;
    var result = 'Result:&nbsp; N/A';
    if ($('#hpi_type_none').is(':checked'))
    {
    }
    if ($('#hpi_type_chronic').is(':checked'))
    {
      result = 'Result:&nbsp; <b>Extended HPI (3 conditions)</b>';
      hpi = 4;
    }
    if ($('#hpi_type_elements').is(':checked'))
    {
      var count = 0;
      if ($('#hpi_location').is(':checked')) count++;
      if ($('#hpi_duration').is(':checked')) count++;
      if ($('#hpi_timing').is(':checked')) count++;
      if ($('#hpi_quality').is(':checked')) count++;
      if ($('#hpi_severity').is(':checked')) count++;
      if ($('#hpi_context').is(':checked')) count++;
      if ($('#hpi_modifying_factors').is(':checked')) count++;
      if ($('#hpi_assoc_signs').is(':checked')) count++;
      if (count>3)
      {
        result = 'Result:&nbsp; <b>Extended HPI (4+)</b>';
        hpi = 4;
      } else if (count>0)
      {
        result = 'Result: <b>Brief HPI (1-3)</b>';
        hpi = 2;
      }
    }
    $('#hpi_result').html(result);

    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      calcHistoryResult();
    }
    
  }  // end function calcHPI


  function calcROS(elementID, solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // show/hide notes area
    if (elementID)
    {
      $('#'+elementID+'_div').toggle();
    }
    
    ros = 1;
    var result = 'Result:&nbsp; N/A';
    var count = 0;
    if ($('#ros_constitutional').is(':checked')) count++;
    if ($('#ros_allergy').is(':checked')) count++;
    if ($('#ros_gastro').is(':checked')) count++;
    if ($('#ros_skin').is(':checked')) count++;
    if ($('#ros_eyes').is(':checked')) count++;
    if ($('#ros_genitourinary').is(':checked')) count++;
    if ($('#ros_enmt').is(':checked')) count++;
    if ($('#ros_hema').is(':checked')) count++;
    if ($('#ros_resp').is(':checked')) count++;
    if ($('#ros_endo').is(':checked')) count++;
    if ($('#ros_neuro').is(':checked')) count++;
    if ($('#ros_musculo').is(':checked')) count++;
    if ($('#ros_cardio').is(':checked')) count++;
    if ($('#ros_psych').is(':checked')) count++;

    if ($('#ros_all_other_negative').is(':checked') && count>0)
    {
      result = 'Result:&nbsp; <b>Complete (Pertinent &amp; All Other Systems: 10+ systems)</b>';
      ros = 4;
    } else
    {
      if (count>9)
      {
        result = 'Result:&nbsp; <b>Complete (Pertinent &amp; All Other Systems: 10+ systems)</b>';
        ros = 4;
      } else if (count>1)
      {
        result = 'Result:&nbsp; <b>Extended (Pertinent &amp; Other Systems: 2-9 systems)</b>';
        ros = 3;
      } else if (count>0)
      {
        result = 'Result: <b>Pertinent to Problem (1 system)</b>';
        ros = 2;
      }
    }
    $('#ros_result').html(result);

    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      calcHistoryResult();
    }
    
  }  // end function calcROS


  function calcPFSH(elementID, solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // show/hide notes area
    if (elementID)
    {
      $('#'+elementID+'_div').toggle();
    }

    pfsh = 2;
    var result = 'Result:&nbsp; N/A';
    var count = 0;
    var result1 = 'Result:&nbsp; <b>Pertinent (1 history area)</b>';
    var result12 = 'Result:&nbsp; <b>Pertinent (1-2 history areas)</b>';
    var result23 = 'Result:&nbsp; <b>Complete (2-3 history areas)</b>';
    var result3 = 'Result:&nbsp; <b>Complete (3 history areas)</b>';
    if ($('#pfsh_past').is(':checked')) count++;
    if ($('#pfsh_family').is(':checked')) count++;
    if ($('#pfsh_social').is(':checked')) count++;
    var encounterType = $('#encounter_type').val();
    switch (encounterType)
    {
      case 'office_new':
      case 'hospital_new':
      case 'consult':
        if (count==1) 
        {
          result = result12;
          pfsh = 3;
        }
        if (count==2) 
        {
          result = result12;
          pfsh = 3;
        }
        if (count==3) 
        {
          result = result3;
          pfsh = 4;
        }
        break;
      case 'office_est':
      case 'hospital_sub':
        if (count==1) 
        {
          result = result1;
          pfsh = 3;
        }
        if (count==2) 
        {
          result = result23;
          pfsh = 4;
        }
        if (count==3) 
        {
          result = result23;
          pfsh = 4;
        }
        break;
    }
    $('#pfsh_result').html(result);
    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      calcHistoryResult();
    }
    
  }  // end function calcPFSH


  function calcHistoryResult(solo)
  {

    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    var encounterType = $('#encounter_type').val();
    historyScore = Math.min(hpi, ros, pfsh);
    var result = 'N/A';
    // calculate code
    switch (historyScore)
    {
      case 1:
        result = 'Problem Focused - ';
        switch (encounterType)
        {
          case 'office_new': result += '99201'; break;
          case 'office_est': result += '99212'; break;
          case 'hospital_sub': result += '99231'; break;
          case 'consult': result += '99241'; break;
        }
        break;
      case 2:
        result = 'Expanded Problem Focused - ';
        switch (encounterType)
        {
          case 'office_new': result += '99202'; break;
          case 'office_est': result += '99213'; break;
          case 'hospital_sub': result += '99232'; break;
          case 'consult': result += '99242'; break;
        }
        break;
      case 3:
        result = 'Detailed - ';
        switch (encounterType)
        {
          case 'office_new': result += '99203'; break;
          case 'office_est': result += '99214'; break;
          case 'hospital_new': result += '99221'; break;
          case 'hospital_sub': result += '99233'; break;
          case 'consult': result += '99242'; break;
        }
        break;
      case 4:
        result = 'Comprehensive - ';
        switch (encounterType)
        {
          case 'office_new': result += '99204/99205'; break;
          case 'office_est': result += '99215'; break;
          case 'hospital_new': result += '99222/99223'; break;
          case 'hospital_sub': result += '99233'; break;
          case 'consult': result += '99244/99245'; break;
        }
        break;
    }
    $('#history_result').html(result);

    //  update history grid highlights
    $('#history_grid_'+encounterType+'>tbody>tr>td').removeClass('history-highlight');
    $('#history_grid_'+encounterType+'>tbody>tr>th').removeClass('history-highlight');
    $('#'+encounterType+'_'+historyScore ).addClass('history-highlight');
    $('#'+encounterType+'_hpi_'+hpi ).addClass('history-highlight');
    if (hpi>0 || ros>1 || pfsh>2)
    {
      $('#'+encounterType+'_ros_'+ros ).addClass('history-highlight');
      $('#'+encounterType+'_pfsh_'+pfsh ).addClass('history-highlight');
    }
    $('#'+encounterType+'_level_'+historyScore ).addClass('history-highlight');

    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      // calculate overall
      calcOverall();
    }
    
  }  // end function calcHistoryResult


  function calcExam(elementID, solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // get chosen values and determine higher value
    var exam95 = '';
    if ($('input[name=exam95]:checked').length)
    {
      exam95 = parseInt($('input[name=exam95]:checked').val());
    }
    var exam97 = '';
    if ($('input[name=exam97]:checked').length)
    {
      exam97 = parseInt($('input[name=exam97]:checked').val());
    }
	var exam97sos = '';
    if ($('input[name=exam97sos]:checked').length)
    {
      exam97sos = parseInt($('input[name=exam97sos]:checked').val());
    }
	
	if(exam95 !== '' && exam97 !== '' && exam97sos !== '')
	{
		examScore = Math.max(exam95, exam97, exam97sos);
	}
	else
	{
		examScore = '';
	}
    
    // highlight the background table cell of the item chosen and the code for the greater of the 95 and 97 guidlines
    $('#examGrid>tbody>tr>td').removeClass('exam-highlight');
    $('#examGrid>tbody>tr>th').removeClass('exam-highlight');
    $('#exam95_cell_'+exam95 ).addClass('exam-highlight');
    $('#exam97_cell_'+exam97 ).addClass('exam-highlight');
	$('#exam97sos_cell_'+exam97sos ).addClass('exam-highlight');
    $('#exam_cell_level_'+examScore ).addClass('exam-highlight');
    $('#exam_type_level_'+examScore ).addClass('exam-highlight');
    
    // calculate overall
    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      calcOverall();
    }
    
  }  // end function calcExam


  function calcExamCalc95(elementID, solo)
  {
    var resultBA = 0;
    var resultOS = 0;
    
    // 95 guidelines
    var ba95 = $('input.e95ba:checked').length;
    $('#examCalcBA').html(ba95);
    if ( ba95 > 7 ) resultBA = 4;
    else if ( ba95 > 1 && $('#e95baDetail').is(":checked") ) resultBA = 3;
    else if ( ba95 > 1 ) resultBA = 2;
    else if ( ba95 > 0 ) resultBA = 1;

    var os95 = $('input.e95os:checked').length;
    $('#examCalcOS').html(os95);
    if ( os95 > 7 ) resultOS = 4;
    else if ( os95 > 1 && $('#e95osDetail').is(":checked") ) resultOS = 3;
    else if ( os95 > 1 ) resultOS = 2;
    else if ( os95 > 0 ) resultOS = 1;
    $("input[name=exam95]").val([Math.max(resultBA, resultOS)]);
    calcExam();
  }


  function calcExamCalc97(elementID, solo)
  {
    // 97 guidelines
    var systems = 0;
    var bullets = 0;
    var count = 0;
    count = $('input.e97con:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97eye:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97ent:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97neck:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97resp:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97card:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97chest:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97gastro:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97geni:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97lymph:checked').length;
    bullets = bullets + count;
    if ( count > 1 ) systems = systems + 1; // note this one takes 2 checkboxes to count as a organ system
    count = $('input.e97muscu:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97skin:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97neuro:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    count = $('input.e97psych:checked').length;
    bullets = bullets + count;
    if ( count > 0 ) systems = systems + 1;
    $('#examCalc97Bullets').html(bullets);
    $('#examCalc97OS').html(systems);
    if ( bullets > 17 && systems > 8 )
    {
      $("input[name=exam97]").val([4]);
    } else if ( bullets > 11 && systems > 1 )
    {
      $("input[name=exam97]").val([3]);
    } else if ( bullets > 5 )
    {
      $("input[name=exam97]").val([2]);
    } else if ( bullets > 0 )
    {
      $("input[name=exam97]").val([1]);
    } else
    {
      $("input[name=exam97]").val([0]);
    }
    
    calcExam();
  }


  function calcDxTx(elementID, solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // get entered values
    var dxtx_1 = parseInt($('#dxtx_1').val());
    var dxtx_2 = parseInt($('#dxtx_2').val());
    var dxtx_3 = parseInt($('#dxtx_3').val());
    var dxtx_4 = parseInt($('#dxtx_4').val());
    var dxtx_5 = parseInt($('#dxtx_5').val());
    
    //validate min/max
    var dxtx_1_real = validateMinMax(dxtx_1, 0, 2);
    var dxtx_2_real = validateMinMax(dxtx_2, 0, 5);
    var dxtx_3_real = validateMinMax(dxtx_3, 0, 5);
    var dxtx_4_real = validateMinMax(dxtx_4, 0, 1);
    var dxtx_5_real = validateMinMax(dxtx_5, 0, 5);
    if (dxtx_1 != dxtx_1_real) { $('#dxtx_1').val(dxtx_1_real); dxtx_1 = dxtx_1_real; }
    if (dxtx_2 != dxtx_2_real) { $('#dxtx_2').val(dxtx_2_real); dxtx_2 = dxtx_2_real; }
    if (dxtx_3 != dxtx_3_real) { $('#dxtx_3').val(dxtx_3_real); dxtx_3 = dxtx_3_real; }
    if (dxtx_4 != dxtx_4_real) { $('#dxtx_4').val(dxtx_4_real); dxtx_4 = dxtx_4_real; }
    if (dxtx_5 != dxtx_5_real) { $('#dxtx_5').val(dxtx_5_real); dxtx_5 = dxtx_5_real; }
    
    dxtxScore = 0;  // declared outside of this function - don't "var" it here or it won't keep it's value outside of the function
    var dxtxCalc = 0;
    var dxtxResult = '';
    
    // calculate
    $('#dxdx_1_result').html(dxtx_1*1);
    dxtxCalc = dxtx_1*1;
    $('#dxdx_2_result').html(dxtx_2*1);
    dxtxCalc = dxtxCalc+dxtx_2*1;
    $('#dxdx_3_result').html(dxtx_3*2);
    dxtxCalc = dxtxCalc+dxtx_3*2;
    $('#dxdx_4_result').html(dxtx_4*3);
    dxtxCalc = dxtxCalc+dxtx_4*3;
    $('#dxdx_5_result').html(dxtx_5*4);
    dxtxCalc = dxtxCalc+dxtx_5*4;
    
    // determine type
    switch (dxtxCalc)
    {
      case 0: 
        dxtxResult = 'N/A';
        break;
      case 1: 
        dxtxResult = 'Minimal';
        dxtxScore = 1;
        break;
      case 2: 
        dxtxResult = 'Limited'; 
        dxtxScore = 2;
        break;
      case 3: 
        dxtxResult = 'Multiple'; 
        dxtxScore = 3;
        break;
      default: // 4 or higher
        dxtxResult = 'Extensive'; 
        dxtxScore = 4;
        break;
    }

    // write final result
    $('#dxtxResult').html(dxtxResult);
    $('#dxtxCalc').html(dxtxCalc);

    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      // update the MDM grid
      calcMDM();
    }
    
  }  // end function calcDxTx


  function calcDataReviewed(elementID, solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // get entered values
    var dataReviewedCalc = 0;
    if ($('#dataReviewed_1').is(':checked')) dataReviewedCalc++;
    if ($('#dataReviewed_2').is(':checked')) dataReviewedCalc++;
    if ($('#dataReviewed_3').is(':checked')) dataReviewedCalc++;
    if ($('#dataReviewed_4').is(':checked')) dataReviewedCalc++;
    if ($('#dataReviewed_5').is(':checked')) dataReviewedCalc++;
    if ($('#dataReviewed_6').is(':checked')) dataReviewedCalc += 2;
    if ($('#dataReviewed_7').is(':checked')) dataReviewedCalc += 2;
        
    // determine type
    switch (dataReviewedCalc)
    {
      case 0: 
      case 1: 
        dataResult = 'Minimal';
        dataReviewScore = 1;
        break;
      case 2: 
        dataResult = 'Limited'; 
        dataReviewScore = 2;
        break;
      case 3: 
        dataResult = 'Multiple'; 
        dataReviewScore = 3;
        break;
      default:  // 4 or higher
        dataResult = 'Extensive'; 
        dataReviewScore = 4;
        break;
    }
    
    // write final result
    $('#dataReviewResult').html(dataResult);    
    $('#dataReviewCalc').html(dataReviewedCalc);    

    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      // update the MDM grid
      calcMDM();
    }
    
  }  // end function calcDataReviewed


  function calcRisk(elementID, solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // get entered values
    riskScore = 0;
    var riskResult = 'N/A';
 
    // remove any existing highlighting
    $('#riskTable>tbody>tr>td').removeClass('risk-highlight');
    $('#riskTable>tbody>tr>th').removeClass('risk-highlight');
    
    var riskMin = 0;
    if ($('#riskMin_1_1').is(':checked')) riskMin++;
    if ($('#riskMin_2_1').is(':checked')) riskMin++;
    if ($('#riskMin_2_2').is(':checked')) riskMin++;
    if ($('#riskMin_2_3').is(':checked')) riskMin++;
    if ($('#riskMin_2_4').is(':checked')) riskMin++;
    if ($('#riskMin_2_5').is(':checked')) riskMin++;
    if ($('#riskMin_2_6').is(':checked')) riskMin++;
    if ($('#riskMin_3_1').is(':checked')) riskMin++;
    if ($('#riskMin_3_2').is(':checked')) riskMin++;
    if ($('#riskMin_3_3').is(':checked')) riskMin++;
    if ($('#riskMin_3_4').is(':checked')) riskMin++;
    if (riskMin>0) 
    {
      riskScore = 1;
      riskResult = 'Minimal';
    }
    
    var riskLow = 0;
    if ($('#riskLow_1_1').is(':checked')) riskLow++;
    if ($('#riskLow_1_2').is(':checked')) riskLow++;
    if ($('#riskLow_1_3').is(':checked')) riskLow++;
    if ($('#riskLow_2_1').is(':checked')) riskLow++;
    if ($('#riskLow_2_2').is(':checked')) riskLow++;
    if ($('#riskLow_2_3').is(':checked')) riskLow++;
    if ($('#riskLow_2_4').is(':checked')) riskLow++;
    if ($('#riskLow_2_5').is(':checked')) riskLow++;
    if ($('#riskLow_3_1').is(':checked')) riskLow++;
    if ($('#riskLow_3_2').is(':checked')) riskLow++;
    if ($('#riskLow_3_3').is(':checked')) riskLow++;
    if ($('#riskLow_3_4').is(':checked')) riskLow++;
    if ($('#riskLow_3_5').is(':checked')) riskLow++;
    if (riskLow>0) 
    {
      riskScore = 2;
      riskResult = 'Low';
    }
    
    var riskMod = 0;
    if ($('#riskMod_1_1').is(':checked')) riskMod++;
    if ($('#riskMod_1_2').is(':checked')) riskMod++;
    if ($('#riskMod_1_3').is(':checked')) riskMod++;
    if ($('#riskMod_1_4').is(':checked')) riskMod++;
    if ($('#riskMod_1_5').is(':checked')) riskMod++;
    if ($('#riskMod_2_1').is(':checked')) riskMod++;
    if ($('#riskMod_2_2').is(':checked')) riskMod++;
    if ($('#riskMod_2_3').is(':checked')) riskMod++;
    if ($('#riskMod_2_4').is(':checked')) riskMod++;
    if ($('#riskMod_2_5').is(':checked')) riskMod++;
    if ($('#riskMod_3_1').is(':checked')) riskMod++;
    if ($('#riskMod_3_2').is(':checked')) riskMod++;
    if ($('#riskMod_3_3').is(':checked')) riskMod++;
    if ($('#riskMod_3_4').is(':checked')) riskMod++;
    if ($('#riskMod_3_5').is(':checked')) riskMod++;
    if ($('#riskMod_3_6').is(':checked')) riskMod++;
    if (riskMod>0) 
    {
      riskScore = 3;
      riskResult = 'Moderate';
    }

    var riskHigh = 0;
    if ($('#riskHigh_1_1').is(':checked')) riskHigh++;
    if ($('#riskHigh_1_2').is(':checked')) riskHigh++;
    if ($('#riskHigh_1_3').is(':checked')) riskHigh++;
    if ($('#riskHigh_2_1').is(':checked')) riskHigh++;
    if ($('#riskHigh_2_2').is(':checked')) riskHigh++;
    if ($('#riskHigh_2_3').is(':checked')) riskHigh++;
    if ($('#riskHigh_2_4').is(':checked')) riskHigh++;
    if ($('#riskHigh_3_1').is(':checked')) riskHigh++;
    if ($('#riskHigh_3_2').is(':checked')) riskHigh++;
    if ($('#riskHigh_3_3').is(':checked')) riskHigh++;
    if ($('#riskHigh_3_4').is(':checked')) riskHigh++;
    if ($('#riskHigh_3_5').is(':checked')) riskHigh++;
    if (riskHigh>0) 
    {
      riskScore = 4;
      riskResult = 'High';
    }
    
    // set highlight
    switch (riskScore)
    {
      case 1: $('#riskMin').addClass('risk-highlight'); break;
      case 2: $('#riskLow').addClass('risk-highlight'); break;
      case 3: $('#riskMod').addClass('risk-highlight'); break;
      case 4: $('#riskHigh').addClass('risk-highlight'); break;
    }
    
    // write final result
    $('#riskResult').html(riskResult);
    
    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      // update the MDM grid
      calcMDM();
    }
  }  // end function calcDataReviewed


  function calcMDM(solo)
  {
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // clear existing highlights
    $('#mdmGrid>tbody>tr>td').removeClass('mdm-highlight');
    $('#mdmGrid>tbody>tr>th').removeClass('mdm-highlight');

    // set new highlights
    $('#mdmDxTx_'+dxtxScore ).addClass('mdm-highlight');
    $('#mdmData_'+dataReviewScore ).addClass('mdm-highlight');
    $('#mdmRisk_'+riskScore ).addClass('mdm-highlight');
    
    // the middle item defines the overall score if we have all 3 scores
    if (dxtxScore>0 && dataReviewScore>0 && riskScore>0)
    {
      var vals = [dxtxScore, dataReviewScore, riskScore];
      vals.sort();
      mdmScore = vals[1];
      $('#mdm_'+mdmScore ).addClass('mdm-highlight');
    }

    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      // calculate overall
      calcOverall();
    }
    
  }  // end function calcMDM


  function calcOverall(solo)
  {
    
    // set solo default
    if (solo === undefined) 
    {
      solo = false;
    }

    // get encounterType
    var encounterType = $('#encounter_type').val();

    // clear highlights
    $('#overall_grid_'+encounterType+'>tbody>tr>td').removeClass('overall-highlight');
    $('#overall_grid_'+encounterType+'>tbody>tr>th').removeClass('overall-highlight');

    // set overallCalc if all of the score are present, and set calc values for the three components
    var validCode = $('#valid_code').val();
    var validCode2 = $('#valid_code2').val();
    if (validCode == 'no' || validCode2 == 'no')
    {
      validCode = 'no';
    }
    var overallCalc = (historyScore>0 && examScore>0 && mdmScore>0);
    var historyScoreCalc = historyScore;
    var examScoreCalc = examScore;
    var mdmScoreCalc = mdmScore;
    var componentCode = 'N/A';
    var componentStatus = '';
    var componentOverUnder = '';
    var componentLevel = '';
    var componentResultsText = '';
    var componentResults = '';
    
    // set overall based on encounter type
    switch (encounterType)
    {
      case 'office_new':
        if (historyScoreCalc>0)
        {
          if (historyScoreCalc==4) historyScoreCalc = 5;
          $('#'+encounterType+'_history_'+historyScoreCalc ).addClass('overall-highlight');
        }
        if (examScoreCalc>0)
        {
          if (examScoreCalc==4) examScoreCalc = 5;
          $('#'+encounterType+'_exam_'+examScoreCalc ).addClass('overall-highlight');
        }
        if (mdmScoreCalc>0)
        {
          mdmScoreCalc++;
          $('#'+encounterType+'_mdm_'+mdmScoreCalc ).addClass('overall-highlight');
        }
        if (overallCalc)  // take the lowest score
        {
          min = Math.min(historyScoreCalc, examScoreCalc, mdmScoreCalc);
          $('#'+encounterType+'_overall_'+min ).addClass('overall-highlight');
          switch (min)
          {
            case 1: componentCode = '99201'; break;
            case 2: componentCode = '99202'; break;
            case 3: componentCode = '99203'; break;
            case 4: componentCode = '99204'; break;
            case 5: componentCode = '99205'; break;
          }
          componentLevel = min;
        }
        break;
      case 'office_est':
        if (historyScoreCalc>0)
        {
          $('#'+encounterType+'_history_'+historyScoreCalc ).addClass('overall-highlight');
        }
        if (examScoreCalc>0)
        {
          $('#'+encounterType+'_exam_'+examScoreCalc ).addClass('overall-highlight');
        }
        if (mdmScoreCalc>0)
        {
          $('#'+encounterType+'_mdm_'+mdmScoreCalc ).addClass('overall-highlight');
        }
        if (overallCalc)  // take the middle score
        {
          var vals = [historyScoreCalc, examScoreCalc, mdmScoreCalc];
          vals.sort();
          $('#'+encounterType+'_overall_'+vals[1] ).addClass('overall-highlight');
          switch (vals[1])
          {
            case 1: componentCode = '99212'; break;
            case 2: componentCode = '99213'; break;
            case 3: componentCode = '99214'; break;
            case 4: componentCode = '99215'; break;
          }
          componentLevel = vals[1];
        }
        break;
      case 'hospital_new':
        if (historyScoreCalc>2)
        {
          if (historyScoreCalc==4) 
          {
            historyScoreCalc = 3;
          } else if (historyScoreCalc==3)
          {
            historyScoreCalc = 1;
          }
          $('#'+encounterType+'_history_'+historyScoreCalc ).addClass('overall-highlight');
        }
        if (examScoreCalc>2)
        {
          if (examScoreCalc==4) 
          {
            examScoreCalc = 3;
          } else if (examScoreCalc==3)
          {
            examScoreCalc = 1;
          }
          $('#'+encounterType+'_exam_'+examScoreCalc ).addClass('overall-highlight');
        }
        if (mdmScoreCalc>0)
        {
          if (mdmScoreCalc>1) mdmScoreCalc--;
          $('#'+encounterType+'_mdm_'+mdmScoreCalc ).addClass('overall-highlight');
        }
        if (overallCalc)  // take the lowest score
        {
          min = Math.min(historyScoreCalc, examScoreCalc, mdmScoreCalc);
          $('#'+encounterType+'_overall_'+min ).addClass('overall-highlight');
          switch (min)
          {
            case 1: componentCode = '99221'; break;
            case 2: componentCode = '99222'; break;
            case 3: componentCode = '99223'; break;
          }
          componentLevel = min;
        }
        break;
      case 'hospital_sub':
        if (historyScoreCalc>0)
        {
          if (historyScoreCalc==4) historyScoreCalc = 3;
          $('#'+encounterType+'_history_'+historyScoreCalc ).addClass('overall-highlight');
        }
        if (examScoreCalc>0)
        {
          if (examScoreCalc==4) examScoreCalc = 3;
          $('#'+encounterType+'_exam_'+examScoreCalc ).addClass('overall-highlight');
        }
        if (mdmScoreCalc>0)
        {
          if (mdmScoreCalc>1) mdmScoreCalc--;
          $('#'+encounterType+'_mdm_'+mdmScoreCalc ).addClass('overall-highlight');
        }
        if (overallCalc)  // take the middle score
        {
          var vals = [historyScoreCalc, examScoreCalc, mdmScoreCalc];
          vals.sort();
          $('#'+encounterType+'_overall_'+vals[1] ).addClass('overall-highlight');
          switch (vals[1])
          {
            case 1: componentCode = '99231'; break;
            case 2: componentCode = '99232'; break;
            case 3: componentCode = '99233'; break;
          }
          componentLevel = vals[1];
        }
        break;
      case 'consult':
        if (historyScoreCalc>0)
        {
          if (historyScoreCalc==4) historyScoreCalc = 5;
          $('#'+encounterType+'_history_'+historyScoreCalc ).addClass('overall-highlight');
        }
        if (examScoreCalc>0)
        {
          if (examScoreCalc==4) examScoreCalc = 5;
          $('#'+encounterType+'_exam_'+examScoreCalc ).addClass('overall-highlight');
        }
        if (mdmScoreCalc>0)
        {
          mdmScoreCalc++;
          $('#'+encounterType+'_mdm_'+mdmScoreCalc ).addClass('overall-highlight');
        }
        if (overallCalc)
        {
          min = Math.min(historyScoreCalc, examScoreCalc, mdmScoreCalc);
          $('#'+encounterType+'_overall_'+min ).addClass('overall-highlight');
          switch (min)
          {
            case 1: componentCode = '99241'; break;
            case 2: componentCode = '99242'; break;
            case 3: componentCode = '99243'; break;
            case 4: componentCode = '99244'; break;
            case 5: componentCode = '99245'; break;
          }
          componentLevel = min;
        }
        break;
    }
    
    // check against em_code_reported to see if it was under, over or correct (or incorrect for the type of encounter selected)
    if (componentCode != 'N/A')
    {
      componentResults = componentCode;
      componentResultsText = 'Method: Component | Calculated: '+componentCode;
    }
    var emCodeReported = $('#em_code_reported').val();
    if (emCodeReported && validCode == 'yes' && componentCode != 'N/A')
    {
      componentResultsText += ' | Reported: '+emCodeReported;
      var codeInt = parseInt(emCodeReported);
      var codeCalculated = parseInt(componentCode);
      var backgroudColor = '';
      var textColor = '';
      var codeStatus = '';
      if (codeInt > codeCalculated)
      {
        backgroundColor = 'red';
        textColor = 'white';
        codeStatus = 'is overcoded.';
        componentOverUnder = 'overcoded';
        componentResults += ' [overcoded as '+emCodeReported+']';
        componentResultsText += ' [overcoded]';        
      } else if (codeInt == codeCalculated)
      {
        backgroundColor = 'green';
        textColor = 'white';
        codeStatus = 'is coded correctly.';
        componentResults += ' (correct)';
      } else
      {
        backgroundColor = 'yellow';
        textColor = 'black';
        codeStatus = 'is undercoded.';
        componentOverUnder = 'undercoded';
        componentResults += ' [undercoded as '+emCodeReported+']';
        componentResultsText += ' [undercoded]';
      }
      componentStatus = 'Reported code '+emCodeReported+' '+codeStatus;
      $('#em_code_over_under2').html('&nbsp;'+componentStatus+'&nbsp;')
        .css('background-color', backgroundColor)
        .css('color', textColor)
        .show();
    } else if (emCodeReported)
    {
      $('#em_code_over_under2').hide();
      backgroundColor = 'red';
      textColor = 'white';
      codeStatus = 'Reported Code is INCORRECT.';
      componentOverUnder = 'incorrect reported code';
      componentResults += ' [incorrectly coded as '+emCodeReported+']';
      componentResultsText += '';        
    } else
    {
      $('#em_code_over_under2').hide();
    }
    $('#component_code_display').html(componentCode);
    $('#component_code').val(componentCode);
    $('#component_status').val(componentStatus);

    // save values
    $('#hpi_score').val(hpi);
    $('#ros_score').val(ros);
    $('#pfsh_score').val(pfsh);
    $('#history_score').val(historyScore);
    $('#exam_score').val(examScore);
    $('#dxtx_score').val(dxtxScore);
    $('#data_review_score').val(dataReviewScore);
    $('#risk_score').val(riskScore);
    $('#mdm_score').val(mdmScore);
    $('#component_level').val(componentLevel);
    $('#component_over_under').val(componentOverUnder);
    $('#component_results').val(componentResults);
    $('#component_results_text').val(componentResultsText);
    
    // if this function is not being called solo, pass on the work
    if (!solo)
    {
      // update overall result
      updateOverallResult();
    }
    
  }  // end function calcOverall

  
  function updateOverallResult()  // no "solo" parameter on this one
  {
    
    // update overall result
    var timeCode = $('#time_code').val();
    var timeOverUnder = $('#time_over_under').val();
    var timeResults = $('#time_results').val();
    var timeResultsText = $('#time_results_text').val();
    var componentCode = $('#component_code').val();
    var componentOverUnder = $('#component_over_under').val();
    var componentResults = $('#component_results').val();
    var componentResultsText = $('#component_results_text').val();
    var overrideCode = $('#override_code').val();
    var emCodeReported = $('#em_code_reported').val();
    var results = '';
    var resultsText = '';
    var emResult = '';

    // initialize override values
    $('#override_over_under').val('');
    $('#override_results_text').val('');
    $('#override_results').val(overrideCode);

    // determine which calculation to use
    var useResult = '';
    if ($('#use_time_result').is(':checked')) 
    {
      useResult = 'time';
    }
    if ($('#use_component_result').is(':checked')) 
    {
      useResult = 'component';
    }
    if ($('#use_override_result').is(':checked')) 
    {
      useResult = 'override';
    }

    // build the results text
    if (timeResults)
    {
      if (!useResult)
      {
        useResult = 'time';
      }
      resultsText = timeResultsText;
      $('#use_time_result').prop('disabled', false);
      $('#time_results_text_display').html(timeResults);
    } else
    {
      $('#use_time_result').prop('disabled', true);
      $('#time_results_text_display').html('N/A');
    }
    if (componentResults)
    {
      if (!useResult)
      {
        useResult = 'component';
      }
      if (resultsText) resultsText += "\n";
      resultsText = componentResultsText;
      $('#use_component_result').prop('disabled', false);
      $('#component_results_text_display').html(componentResults);
    } else
    {
      $('#use_component_result').prop('disabled', true);
      $('#component_results_text_display').html('N/A');
    }

    // if both are calculated figure out the higher value
    if (timeCode && componentCode && parseInt(timeCode)>parseInt(componentCode) && !useResult)
    {
      useResult = 'time';
      $("input[name=use_result][value=time]").prop('checked', true);
    }
    if (timeCode && componentCode && parseInt(timeCode)<=parseInt(componentCode) && !useResult)
    {
      useResult = 'component';
      $("input[name=use_result][value=component]").prop('checked', true);
    }

    // set final results
    switch (useResult)
    {
      case 'time':
        results = timeResults;
        emResult = timeOverUnder;
        break;
        
      case 'component':
        results = componentResults;
        emResult = componentOverUnder;
        break;
        
      case 'override':  // calculate and assign values
        var overrideOverUnder = '';
        var overrideResults = overrideCode;
        var overrideResultsText = 'Method: Assigned by Auditor | Code: '+overrideCode;
        if (emCodeReported)
        {
          componentResultsText += ' | Reported: '+emCodeReported;
        }
        if (validCode == 'no')
        {
          overrideResults += ' (INCORRECT)';
        } else if (parseInt(emCodeReported) > parseInt(overrideCode))
        {
          overrideOverUnder = 'overcoded';
          overrideResults += ' [overcoded as '+emCodeReported+']';
          overrideResultsText += ' [overcoded]';
        } else if (parseInt(emCodeReported) == parseInt(overrideCode))
        {
          overrideResults += ' (correct)';
        } else
        {
          overrideOverUnder = 'undercoded';
          overrideResults += ' [undercoded as '+emCodeReported+']';
          overrideResultsText += ' [undercoded]';
        }
        results = overrideResults;
        $('#override_results_text_display').html(overrideResults);
        emResult = overrideOverUnder;        
        $('#override_over_under').val(overrideOverUnder);
        $('#override_results_text').val(overrideResultsText);
        $('#override_results').val(overrideResults);
        if (resultsText) resultsText += "\n";
        resultsText = overrideResultsText;
        break;
    }

    // write values
    $('#results').val(results);
    $('#results_text').val(resultsText);
    $('#em_result').val(emResult);
    
  }  // end function updateOverallResult


  function gradeSOSExam(init=false) 
  {
	// get current selected SOS exam
	var selected_exam = $('#sel_sos').val();
	var exam_container = '#sos_' + selected_exam + '_container';
	$('.sos_container').hide();
	$(exam_container).show();
	
	
	// set grading defaults
	var sos_header = 'SOS';
	var bullet_score = 0;
	var level_1 = 0;
	var level_2 = 0;
	var level_3 = 0;
	var level_4 = 0;
	var sos_level = 0;
	var comprehensive_ok = true;
	
	
	switch (selected_exam)
    {
      case 'car':
		sos_header = 'Cardiovascular';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 27;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
      case 'ear':
	    sos_header = 'Ear, Nose and Throat';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 27;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	  case 'eye':
	    sos_header = 'Eye';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 9;
		level_4 = 14;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	  case 'gen':
	    sos_header = 'Genitourinary';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 36;
		
		var gender = $('#sos_gen_gender').val();
		var gender_count = 0;
		
		// calculate total bullets with only male or female
		var total_bullets = $(exam_container + " [type='checkbox']:checked").length; 
		var minus_malefemale = total_bullets - $(".esos_gen_genit:checked").length;
		
		if(gender == 'male')
		{
			level_4 = 25;
			$('#sos_gen_female').hide();
			$('#sos_gen_male').show();
			
			gender_count = $("#sos_gen_male [type='checkbox']:checked").length;
			bullet_score = minus_malefemale + gender_count;
		}
		else
		{
			level_4 = 23;
			$('#sos_gen_female').show();
			$('#sos_gen_male').hide();
			
			gender_count = $("#sos_gen_female [type='checkbox']:checked").length;
			
			if(gender_count < 7){ comprehensive_ok = false; }
			else{ comprehensive_ok = true; }
			
			bullet_score = minus_malefemale + gender_count;
		}
		
        break;
	  case 'hem':
	    sos_header = 'Hematologic/Lymphatic/Immunologic';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 21;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	  case 'mus':
	    sos_header = 'Musculoskeletal';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 40;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	  case 'neu':
	    sos_header = 'Neurological';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 25;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	  case 'psy':
	    sos_header = 'Psychiatric';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 9;
		level_4 = 15;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	  case 'res':
	    sos_header = 'Respiratory';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 24;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	  case 'ski':
	    sos_header = 'Skin';
        // set grading rules
		level_1 = 5;
		level_2 = 6;
		level_3 = 12;
		level_4 = 25;
		bullet_score = $(exam_container + " [type='checkbox']:checked").length; 
        break;
	}
	
	$('.sos_header').html(sos_header);
	
	$('#sos_result_1').html('1-' + level_1 + ' bulleted elements');
	$('#sos_result_2').html(level_2 + '-' + (level_3 - 1) + ' bulleted elements');
	$('#sos_result_3').html(level_3 + '-' + (level_4 - 1) + ' bulleted elements');
	// $('#sos_result_4').html('All bulleted elements');
	
	// Calculate sos exam level
	     if(bullet_score >= level_4 
	//	 && $('#sos_document_checkbox').is(":checked")
		 && comprehensive_ok)        { sos_level = 4 }
	else if(bullet_score >= level_3) { sos_level = 3 }
	else if(bullet_score >= level_2) { sos_level = 2 }
	else if(bullet_score <= level_1 && bullet_score > 0) { sos_level = 1 }
	else { sos_level = '0' }
	
	// Don't grade on initialize
	if(!init)
	{
		$("input[name=exam97sos]").val([sos_level]);
		$("#examCalcSOS").html(bullet_score);
	}
	
	calcExam();
	
  }
  
  function in_array(needle, haystack)
  {
    
    for(var i in haystack) 
    {
      if (haystack[i] == needle) return true;
    }
    return false;
    
  }
  
  
  // public functions (exported)
  return {
      initPage : initPage
    , changeCodeReported : changeCodeReported
    , changeEncounter : changeEncounter
    , calcTimeBased : calcTimeBased
    , showNotes : showNotes
    , calcHPI : calcHPI
    , calcROS : calcROS
    , calcPFSH : calcPFSH
    , calcExam : calcExam
    , calcExamCalc95 : calcExamCalc95
    , calcExamCalc97 : calcExamCalc97
    , calcDxTx : calcDxTx
    , calcDataReviewed : calcDataReviewed
    , calcRisk : calcRisk
	, gradeSOSExam : gradeSOSExam
    , updateOverallResult : updateOverallResult
  };

})(jQuery);


function validateMinMax(value, min, max) 
{
  if(parseInt(value) < min || isNaN(parseInt(value))) 
    return min; 
  else if(parseInt(value) > max) 
    return max; 
  else return value;
}