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

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		i1 = newImage("nav/"+lang+"/nav-home-over.png");
		i2 = newImage("nav/"+lang+"/nav-news-over.png");
		i3 = newImage("nav/"+lang+"/nav-unternehmen-over.png");
		i4 = newImage("nav/"+lang+"/nav-karriere-over.png");
		i5 = newImage("nav/"+lang+"/nav-klemmelemente-over.png");
		i6 = newImage("nav/"+lang+"/nav-stossdaempfer-over.png");
		i7 = newImage("nav/"+lang+"/nav-produktassistent-over.png");
		i8 = newImage("nav/"+lang+"/nav-zimmergroup-over.png");
		i9 = newImage("nav/"+lang+"/nav-kontakt-over.png");
		preloadFlag = true;
	}
}

function changeNav(name, over){
	if (active_nav == name) return;
	var nav = document.getElementById('nav-'+name);
	if (over == true){
		nav.src = nav.src.replace(".png", "-over.png");
	}
	else{
		nav.src = nav.src.replace("-over.png", ".png");
	}
}

function openWindow(theURL,winName,features){
  window.open(theURL,winName,features);
}