//---------------------------------------------------------------------------
var headerImages = new Array();
headerImages[0] = "images/headerbilder_1.jpg";
headerImages[1] = "images/headerbilder_2.jpg";
headerImages[2] = "images/headerbilder_3.jpg";
headerImages[3] = "images/headerbilder_4.jpg";
headerImages[4] = "images/headerbilder_5.jpg";
headerImages[5] = "images/headerbilder_6.jpg";
headerImages[5] = "images/headerbilder_7.jpg";

var randomImageIndex = Math.round(Math.random() * 6);

//---------------------------------------------------------------------------
function addEvent( obj, type, fn )
{
	if (obj.addEventListener)
		obj.addEventListener( type, fn, false );
	else if (obj.attachEvent)
	{
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
	}
}

function removeEvent( obj, type, fn )
{
	if (obj.removeEventListener)
		obj.removeEventListener( type, fn, false );
	else if (obj.detachEvent)
	{
		obj.detachEvent( "on"+type, obj[type+fn] );
		obj[type+fn] = null;
		obj["e"+type+fn] = null;
	}
}

function openInNewWindow() {
	// Change "_blank" to something like "newWindow" to load all links in the same new window
    var newWindow = window.open(this.getAttribute('href'), '_blank');
    newWindow.focus();
    return false;
}

function getNewWindowLinks() {
	if (document.getElementById && document.createElement && document.appendChild) {
		var strNewWindowAlert = " (opens in a new window)";
		var links = document.getElementsByTagName('a');
		var objWarningText;
		var strWarningText;
		var link;
		for (var i = 0; i < links.length; i++) {
			link = links[i];
			if (/\bfenster\b/.exec(link.className)) {
				link.onclick = openInNewWindow;
			}
		}
		objWarningText = null;
	}
}

addEvent(window, 'load', getNewWindowLinks);