<script type="text/javascript" charset="utf-8">
 
	$(document).ready(function() {
 
		var minRanked = 3;
 
		// Initially disable the Next/Submit button
		$('input[type="submit"]').attr('disabled', 'disabled');
 
		// Listeners on ranking elements
		$('.ranking td.label, .ranking td.output img').click(function(){
 
			var count = 0;
 
			// Count the ranked items 
			$('.ranking td.output input.text').each(function(i){
				if($(this).val()) {
					count++;
				}
			});
 
			// Toggle the Next/Submit button
			if(count >= minRanked) {
				$('input[type="submit"]').attr('disabled', '');
			}
			else {
				$('input[type="submit"]').attr('disabled', 'disabled');
			}
		});
 
	});
 
</script>

<script type="text/javascript" charset="utf-8">
 
	$(document).ready(function() {
 
		// Initially disable the Next/Submit button if the slider has never been moved and the radio is unchecked
		if($('.multinum-slider input[id^="answer"]').val() == '' && $('input.radio:checked').length == 0) {
			$('#movesubmitbtn, #movenextbtn').attr('disabled', 'disabled');
		}
 
		var sliderChanged = '';
 
		// Listener on the slider
		$('.ui-slider').bind('slidechange', function(event, ui) {
			sliderChanged = 1;
			if($('input.radio:checked').length > 0) {
				$('#movesubmitbtn, #movenextbtn').attr('disabled', '');
			}
		});
 
		// Listener on the radio
		$('input.radio').click(function(){
			if(sliderChanged > 0) {
				$('#movesubmitbtn, #movenextbtn').attr('disabled', '');
			}
		});
 
	});
 
</script>