tt = null;
	
	document.onmousemove = updatePoptip;
	
	function updatePoptip(e) {
		x = (document.all) ? window.event.x + document.body.scrollLeft : e.pageX;
		y = (document.all) ? window.event.y + document.body.scrollTop  : e.pageY;
		if (tt != null) {
			tt.style.left = (x - 195) + "px";
			tt.style.top = (y - 190) + "px";
		}
	}
	function showPoptip(id) {
		tt = document.getElementById(id);
		tt.style.display = "block"
	}
	
	function hidePoptip() {
		tt.style.display = "none";
	}