function reverseSlider(qID) {
 
  // Identify the question
  var thisQuestion = $('#question'+qID);
 
  //$('span.input', thisQuestion).show() // un-comment this to debug
 
  // Reverse the min/max displays
  $('.answer-item', thisQuestion).each(function(i) {
    var showMinText = $('.slider-showmin', this).text();
    var showMaxText = $('.slider-showmax', this).text();
    $('.slider-showmin', this).text(showMaxText);
    $('.slider-showmax', this).text(showMinText);
  });
 
  // Initial slider positions
  $('span.input input[type="text"]', thisQuestion).each(function(i) {
 
    if($(this).val() != '') {        
      var thisRow = $(this).closest('li.answer-item');        
      var thisSlider = $('.ui-slider', thisRow);
      var sliderValue = $(thisSlider).slider('option', 'max')+$(thisSlider).slider('option', 'min')-$(this).val();
      $('.ui-slider', thisRow).slider('option', 'value', sliderValue);
      $('.slider-callout', thisRow).text($(this).val()); 
    }
  });
 
  // 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 step = $(thisSlider).slider('option', 'step').toString();
    var stepDecimals = '';
    if(step.indexOf('.') != -1) {
      stepDecimals = step.length - (step.indexOf('.')+1);
    }
    var reverseValue = '';
 
    // Calculate the "reverse" value
    if(ui.value > $(thisSlider).slider('option', 'max')) {
      reverseValue = $(thisSlider).slider('option', 'min');
    }
    else if(ui.value < $(thisSlider).slider('option', 'min')) {
      reverseValue = $(thisSlider).slider('option', 'max');
    }
    else if(stepDecimals > 0) { // Handle decimal places
      reverseValue = ($(thisSlider).slider('option', 'max')+$(thisSlider).slider('option', 'min')-ui.value).toFixed(stepDecimals);
    }
    else{
      reverseValue = $(thisSlider).slider('option', 'max')+$(thisSlider).slider('option', 'min')-ui.value;
    }
    reverseValue = reverseValue.toString();
    reverseValue = reverseValue.replace(/\./,LSvar.sLEMradix);
 
    // Load the callout
    $('.slider_callout', thisRow).text(reverseValue);
 
    // Set the data value
    $('input.text', thisRow).val(reverseValue);
    $('input.text', thisRow).triggerHandler("keyup");
  });
}

<script type="text/javascript" charset="utf-8">  
    $(document).ready(function() {   
    reverseSlider({QID});
  });
</script>