//kommentare by mh-iis, 05-2006

//einstellen der fenstergröße
var wkontakt = 300;
var wimpressum = 500;
var wsend = 100;

function zeigen(element) {
// das element holen
	var aa = document.getElementById(element);
	// das element sichtbar machen
		aa.style.visibility = "visible";
		
		//abfragen welches element es ist, und aus den jeweiligen fenstergroessen die x-koordinate ausrechnen
		if (element == "kontakt") {
			var x = (0.5*(screen.availWidth - wkontakt));
		}
		if (element == "impressum") {
			var x = (0.5*(screen.availWidth - wimpressum));				
		}
		if (element == "send") {
			var x = (0.5*(screen.availWidth - wsend));				
		}
		if (element == "download") {
			var x = (0.5*(screen.availWidth - wkontakt));				
		}
		aa.style.marginLeft = x + "px";
	return;
}


function verbergen(element) {
	// das element holen
	var bb = document.getElementById(element);
		// und dann verbergen
		bb.style.visibility = "hidden";
	return;
}