function overlay_open(element) {
	var container = document.getElementById("overlay");
	var window = document.getElementById("window");
	container.style.display="block";
	window.style.top=(document.documentElement.clientHeight/2-(400/2))+"px";
	window.style.left=(document.documentElement.clientWidth/2-(325/2))+"px";
	
	overlay_show(element);
}
		
function overlay_close() {
	document.getElementById("overlay").style.display="none";
}

function overlay_show(element) {
	var container = document.getElementById("window");
	container.innerHTML=element.innerHTML;
}

function overlay_mouseover() {
	document.body.style.cursor='pointer';
}
		
function overlay_mouseout() {
	document.body.style.cursor='default';
}