function findLiveHeight(){
	if(window.innerHeight != null)
		return window.innerHeight;
	if (document.body.clientHeight != null)
		return document.body.clientHeight;
	return (null);
}
function findLiveWidth(){
	if(window.innerWidth != null)
		return window.innerWidth;
	if (document.body.clientWidth != null)
		return document.body.clientWidth;
	return (null);
}
function makeLayer(id, position, left, top, width, height, visibility) {
	this.obj = document.getElementById(id).style;
	this.obj.position = position;
	this.obj.left = parseInt(left*xu);
	this.obj.top = parseInt(top*yu);
	this.obj.width = parseInt(width*xu);
	this.obj.height = parseInt(height*yu);
	this.obj.visibility = visibility;
	return this.obj;
}