function showhighlights(divname,tdname,varX,varY) {
	if (!varX) varX=0;
	if (!varY) varY=0;
	document.getElementById(divname).style.visibility='visible';
	currentEle=document.getElementById(tdname);
	var topo=0;
	var esq=0;
	var dif=0;
	while(currentEle.tagName.toLowerCase() != 'body') {
		topo += currentEle.offsetTop;
		esq += currentEle.offsetLeft;
		currentEle = currentEle.offsetParent;
	}
	topo -= document.getElementById(tdname).offsetHeight;
	//esq += document.getElementById(tdname).offsetWidth;
	div= document.getElementById(divname);
	div.style.top=topo+varY;
	div.style.left=esq+varX;
}