PHP Code

1) Add a new class “over_all_fit_required_entry”
<input type=”hidden” name=”over_all_fit_selected” id=”over_all_fit_selected” class=”over_all_fit_required_entry”>

2) Add the below given code
<script type=’text/javascript’>
//< ![CDATA[
Validation.add('over_all_fit_required_entry', ' Please select option', function(v) {
return !Validation.get('IsEmpty').test(v);
});
//]]>
</script>

<script type=”text/javascript”>
$(“:submit”).removeAttr(“disabled”);
</script>

var isValidZip = /(^\d{5}$)|(^\d{5}-\d{4}$)/.test(zip);
if(isValidZip==false)

alert(“Invalid zip”);

$$(‘[id="product_id"]‘)[0].value=”Test”;

<script type=”text/javascript”>
jQuery(function($){
if(jQuery(‘.nivoSlider’).find(‘img’).length>1){
$(‘#slider’).nivoSlider({
effect: ‘fade’ // Specify sets like: ‘fold,fade,sliceDown’
});
}
});
</script>

<script>
window.history.back()
</script>

jQuery(“#element-id”).removeClass(“class-name”);

jQuery(“#element-id”).addClass(“class-name”);