var tt = null;
document.onmousemove = updateTT;


// Anzeige + Positionierung des Tooltipps
function showTT(id) {
	tt = document.getElementById(id);
	tt.style.display = "block"
}
function hideTT() {
	tt.style.display = "none";
}
function updateTT(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 + 20) + "px";
		tt.style.top 	= (y + 20) + "px";
	}
}