//02012007 LGF focus vs blur

var highlightcolor="yellow"

var ns6=document.getElementById&&!document.all
var previous=''
var eventobj

//Regular expression to highlight only form elements
var intended=/INPUT|TEXTAREA|SELECT|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
    }
}