userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			img = null;
			if (document.layers) {
				img = findElement(changeImages.arguments[i],0);
			}
			else {
				img = document.images[changeImages.arguments[i]];
			}
			if (img) {
				img.src = changeImages.arguments[i+1];
			}
		}
	}
}

function newWin(name, url, width, height, args) {

	var popupurl = url;
	var newWin = new Object();

	newWin.args = args;
	newWin.url = url;
	newWin.name = name;
	newWin.width = width;
	newWin.height = height;

	if (document.layers) {// browser is NN
			newWin.left = window.screenX + ((window.outerWidth - newWin.width) / 2);
			newWin.top = window.screenY + ((window.outerHeight - newWin.height) / 2);
			var attr = 'screenX=' + newWin.left + ',screenY=' + newWin.top + ',resizable=yes,width=' + newWin.width + ',height=' + newWin.height + ',' + newWin.args;
	} else {// browser is MSIE
		newWin.left = (screen.width - newWin.width) / 2;
		newWin.top = (screen.height - newWin.height) / 2;
		var attr = 'left=' + newWin.left + ',top=' + newWin.top + ',resizable=yes,width=' + newWin.width + ',height=' + newWin.height + ',' + newWin.args;
	}
	newWin.win=window.open(newWin.url, newWin.name, attr);
	if( (!newWin.win) || (newWin.win.closed) ) {// probably popup-blocker active
		popupblocker_alert();
		return;
	}
	newWin.win.opener=self;
	newWin.win.focus();
	return (newWin);

}

/*
    SelectorLayer
        der Komplette Layer
    SelectorMask
        Hintergrund
    SelectorHeadline
        Kopfzeile oder Schliessen-Bereich (SelectorLayer, wenn nicht angegeben)
*/
function NwsShowLayer(params) {

     if ( !params.headline ) {
        params.headline = params.layer;
    }

    var maskHeight = $(document).height();
    var maskWidth = $(window).width();
    $(params.mask).css({'width':maskWidth,'height':maskHeight});
    $(params.mask).fadeIn(1000);
    $(params.mask).fadeTo('slow', 0.8);
    var winH = $(window).height();
    var winW = $(window).width();
    $(params.layer).css('top',  winH / 2 - $(params.layer).height() / 2);
    $(params.layer).css('left', winW / 2 - $(params.layer).width()  / 2);
    $(params.layer).fadeIn(2000);

    $(params.headline).click(function(){
        $(params.mask).hide();
        $(params.layer).hide();
    });

    $(params.mask).click(function(){
        $(params.mask).hide();
        $(params.layer).hide();
    });

}