var evt = null;
var popupID = "eventPopupWrap";
var globalEventID = "";
function showEvent(eventID) {
 	document.onmousemove = follow_layers;
	globalEventID = eventID;
}

function hideEvent(eventID) {
	document.onmousemove = "";
	document.getElementById(popupID).style.display = "none";
	document.getElementById(eventID).style.display = "none";
}

function follow_layers(evt) {
	var posx = 0;
	var posy = 0;
	if (!evt) var evt = window.event;
	if (evt.pageX || evt.pageY) {
		posx = evt.pageX;
		posy = evt.pageY;
	} else if (evt.clientX || evt.clientY) {
		if (document.documentElement && document.documentElement.scrollTop) {
			posx = evt.clientX + document.documentElement.scrollLeft;
			posy = evt.clientY + document.documentElement.scrollTop;
		} else if (document.body) {
			posx = evt.clientX + document.body.scrollLeft;
			posy = evt.clientY + document.body.scrollTop;
		}
	}
	document.getElementById(popupID).style.left = posx + 15 + "px";
	document.getElementById(popupID).style.top = posy + "px";
	document.getElementById(popupID).style.display = "block";
	document.getElementById(globalEventID).style.display = "block";
	return;
}