function changeSrc(e,y,b)
{
var targ
if (!e) var e = window.event
if (e.target) targ = e.target
else if (e.srcElement) targ = e.srcElement
if (targ.nodeType == 3)
targ = targ.parentNode
document.getElementById("myImage").style.display="inline"
document.getElementById("coldiv").style.display="none"
document.getElementById("myImage").src="images/scan00" + y + b + ".jpg"
}

function whichElement(e)
{
var targ
if (!e) var e = window.event
if (e.target) targ = e.target
else if (e.srcElement) targ = e.srcElement
if (targ.nodeType == 3) // defeat Safari bug
   targ = targ.parentNode
var tname
tname=targ.tagName
alert("You clicked on a " + tname + " element.")
}