function waitPreloadPage() { //DOM
	if (document.getElementById){
		document.getElementById('prepage').style.visibility='hidden';
	} else {
		if (document.layers){ //NS4
			document.prepage.visibility = 'hidden';
		}
		else { //IE4
			document.all.prepage.style.visibility = 'hidden';
		}
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function change_boxshow () {
	document.getElementById('boxhide1').className="out";
	document.getElementById('boxhide2').className="in";
}
function change_qf (id) {
	// alle nav ausblenden
	var nav = document.getElementById("qf_nav").getElementsByTagName("a");
	for (var i=0;i<nav.length;i++){
		document.getElementById("qf_nav").getElementsByTagName("a")[i].className = "";
	}
	// betroffende nav einblenden
	document.getElementById("qf_nav_"+id).className = "active";
	// allen content ausblenden
	var cont = document.getElementById("qf_content").getElementsByTagName("div");
	for (var i=0;i<cont.length;i++){
		document.getElementById("qf_content").getElementsByTagName("div")[i].className = "out";
	}
	// betroffener content einblenden
	document.getElementById("qf_content_"+id).className = "in";
	// fokus (firefox)
	document.getElementById("home").focus();
}

function externalLinks() {
	 if(!document.getElementsByTagName) return;
	 var links,a,i;
	 links = document.getElementsByTagName("a");
	 for(i=0;i<links.length;i++) {
		 a = links[i];
		 if(a.getAttribute("rel") && a.getAttribute("rel").indexOf("external") > -1) {
			 a.onclick = function() {
				 window.open(this.href);
				 return false;
			 }
		 }
	 }
}