var highlightcolor="#DCDCDC";
var ns6=document.getElementById&&!document.all
var previous=''
var eventobj
//Regular expression to highlight only form elements
var intended=/INPUT|TEXTAREA|OPTION/
//Function to check whether element clicked is form element
function checkel(which){
	if (which.style&&intended.test(which.tagName)){
		if (ns6&&eventobj.nodeType==3)
		eventobj=eventobj.parentNode.parentNode
		return true
	}else
		return false
		}
//Function to highlight form element
function highlight(e){
	eventobj=ns6? e.target : event.srcElement
	if (previous!=''){
		if (checkel(previous))
		previous.style.backgroundColor='';
		previous=eventobj
		if (checkel(eventobj))
		eventobj.style.backgroundColor=highlightcolor;
	}else{
		if (checkel(eventobj))
		eventobj.style.backgroundColor=highlightcolor;
		previous=eventobj
	}
}