function imgClick(varFile){

	document.getElementById("contMask").style.display='block';
	document.getElementById("imgOver").style.display='block';


	document.getElementById("contMask").style.top = document.body.scrollTop;
	document.getElementById("imgOver").style.top = document.body.scrollTop;

	document.getElementById("imgOver").innerHTML = "<img title='Click to close' src='" + varFile + "' />";	
}

function imgHide(){
	document.getElementById("contMask").style.display='none';
	document.getElementById("imgOver").style.display='none';
}


function getposOffset(what, offsettype){
	var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
	var parentEl=what.offsetParent;
	while (parentEl!=null){
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl=parentEl.offsetParent;
	}
	return totaloffset;
}