Ein eigenes Kontextmenü mit Javascript erstellen

function Kontext (e) {

	div = document.getElementById("Kontextmenue").style;

	if (!e) e = window.event;

	if ((e.type && e.type == "contextmenu") || (e.button && e.button == 2) || (e.which && e.which == 3)) {

		var IE = document.all?true:false

		if(IE) {

			div.left  = e.clientX + document.body.scrollLeft + "px";

			div.top = e.clientY + document.body.scrollTop + "px";

		} else {

			div.left  = e.pageX + "px";

			div.top = e.pageY + "px";

		}

		div.display = "block";

		opacity("Kontextmenue",0,100,500);

		if (window.opera) window.alert("Sorry: Diese Funktion ist deaktiviert.");

		return false;

	} else {

		if(div.display=="block") {

			opacity("Kontextmenue",100,0,250);

			setTimeout("div.display = 'none';",250);

		}

	}

}

if (document.layers) document.captureEvents(Event.MOUSEDOWN);

document.onmousedown = Kontext;

document.oncontextmenu = Kontext;