<script type="text/javascript" charset="utf-8">  
  $(document).ready(function() {
 
    // Identify this question
    var thisQuestion = $('#question{QID}');
 
    // New slide function
    $('.ui-slider', thisQuestion).slider( 'option', 'slide', function(event, ui) {  
      // Define a few vars
      var thisRow = $(this).closest('li.answer-item');
      var thisSlider = $(this);
      var thisValue = ui.value.toString().replace(/\./,LSvar.sLEMradix);
 
      // Load the callout
      $('.slider_callout', thisRow).text(thisValue);
 
      // Set the data value
      $('input.text', thisRow).val(thisValue);
      $('input.text', thisRow).triggerHandler("keyup");
 
      handleCallout(thisRow, thisValue);
    });
 
    // Initial callout states
    $('input.text', thisQuestion).each(function(i) {
      handleCallout($(this).closest('li.answer-item'), $(this).val());
    });
 
    // Handle the callout style
    function handleCallout(thisRow, sliderVal) {
      if(sliderVal < 20) {
        $('.slider_callout', thisRow).css('color', '#D90000');
      }
      else if(sliderVal < 40) {
        $('.slider_callout', thisRow).css('color', '#D96D00');
      }
      else if(sliderVal < 60) {
        $('.slider_callout', thisRow).css('color', '#D9D900');
      }
      else {
        $('.slider_callout', thisRow).css('color', '#00B22D');
      }
    }
 
    });
</script>

$( ".selector" ).on( "slide", function( event, ui ) {} );

<script type="text/javascript" charset="utf-8">  
  $(document).ready(function() {
 
    // Identify this question
    var thisQuestion = $('#question{QID}');
 
    // Slide function
    $('.ui-slider', thisQuestion).on('slide', function( event, ui ) {
      handleCallout($(this).closest('li.answer-item'), ui.value);
    });
 
    // Initial callout states
    $('input.text', thisQuestion).each(function(i) {
      handleCallout($(this).closest('li.answer-item'), $(this).val());
    });
 
    // Handle the callout style
    function handleCallout(thisRow, sliderVal) {
      if(sliderVal < 20) {
        $('.slider_callout', thisRow).css('color', '#D90000');
      }
      else if(sliderVal < 40) {
        $('.slider_callout', thisRow).css('color', '#D96D00');
      }
      else if(sliderVal < 60) {
        $('.slider_callout', thisRow).css('color', '#D9D900');
      }
      else {
        $('.slider_callout', thisRow).css('color', '#00B22D');
      }
    }
 
    });
</script>