<script> ...  
var toJSPVar = doSomething(parameters);   document.location.href="pageAux.jsp?jspVAR=" + toJSPVar; ...
</script>

function getFirstData(theValue) 		
{ 			
  var firstComboValue = theValue; 
  alert(firstComboValue); 		
}

		 <form name="regExaminee" method="post" action="regExaminee.jsp" >   			   
<!--Start of Registration Form-->         
<% 			String testCenter = request.getParameter("ddlTestCenter"); 			
String driver = "com.mysql.jdbc.Driver";

<select name="ddlTestCenter" id="ddlTestCenter" style="width:180px" onChange="this.form.submit();">

<input type="hidden" name="hiddenopt" value="secret"> <select name="list" onC