var preloadFlag = false;
preloadImages();

function BrowserCheck(){ 
   var b = navigator.userAgent;
   var bAgent = window.navigator.userAgent; 
   var bAppName = window.navigator.appName; 
   var bMozIdx = bAgent.indexOf("Mozilla/");
   var noOpera = (b.lastIndexOf("Opera") == -1); 
   if (document.layers) return "NS";
   if (!document.all && document.getElementById && noOpera) return "MZ";
   if ((document.getElementById && (bAppName.indexOf("Explorer") >= 0)) && (bAgent.indexOf("Mac") >= 0) ) return "IEMac";
   if (!noOpera) return "OP";
}




	IsW3CDOM = (document.getElementById) ? true : false;
	function newImage(arg) {
		if (document.images) {
			rslt = new Image();
			rslt.src = arg;
			return rslt;
		}
	}
	function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

function preloadImages() {
	if (document.images) {
		over_img = newImage('/img/pfeil_orange.gif');
		preloadFlag = true;
	}
}
	
	
function ChangeColor(id, color,status) { 
	if (IsW3CDOM && (document.getElementById(id))) {
		document.getElementById(id).style.backgroundColor = color;
		if (document.getElementById('a_'+id)){
			if (status !='off') currentColor =  document.getElementById('a_'+id).style.color ;
			document.getElementById('a_'+id).style.color = (status =='off') ? currentColor:'#191970';
		}
	}
}
	
function GoTo(adr) { 
	document.location.href = adr;

}