// JavaScript Document

//Highlight form element- © Dynamic Drive (www.dynamicdrive.com)
//For full source code, 100's more DHTML scripts, and TOS,
//visit http://www.dynamicdrive.com

var highlightcolor="#E3E3EE" //"lightyellow"
var forelightcolor="#000000"
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){
	//debug(which.style)
	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.style.color=''
		}
		previous=eventobj
		if (checkel(eventobj)){
			eventobj.style.backgroundColor=highlightcolor
			eventobj.style.color=forelightcolor
		}
	}
	else{
		if (checkel(eventobj)){
			eventobj.style.backgroundColor=highlightcolor
			eventobj.style.color=forelightcolor
		}
		previous=eventobj
	}
}