Code:
<script type="text/javascript" src="js/jquery-1.4.2.min.js"> </script>

<script type="text/javascript">
var hdnClassificationNameElements;
var hdnIsApproveEnabledElements;
$(document).ready(function(){
hdnClassificationNameElements= $(".hdnClassificationNameClass");  //All elements with class="class3"
hdnIsApproveEnabledElements= $(".hdnIsApproveEnabledClass");  //All elements with class="class4"
});
 
</script>

browser says Syntax error at BOLD Line , char 1 , Syntax error

I don't see any error there . Do you see anything wrong here ?