var mouse_x = 0;
var mouse_y = 0;


function MouseClick(Event) {
	if (!Event) Event = window.event;
	mouse_x  = Event.clientX;
	mouse_y  = Event.clientY;
	
	// Rechte Maustaste abfangen, wenn Funktion MouseRightClick existiert		
	if (window.MouseRightClick) {
		if ( (Event.type && Event.type == "contextmenu") || (Event.button && Event.button == 2) || (Event.which && Event.which == 3)) {
			return MouseRightClick(Event);
		}
	}
	
}

if (document.layers) document.captureEvents(Event.MOUSEDOWN);
document.onmousedown 	= MouseClick;
document.oncontextmenu 	= MouseClick;