function preloadImages() {
	for(var i = 0, s = preloadImages.store; i < arguments.length; ++i)
	(s[s.length] = new Image()).src = arguments[i];
}
preloadImages.store = [];
preloadImages("navi/navi_anwaelte_on.gif","navi/navi_taetigkeitsbereiche_on.gif","navi/navi_kontakt_on.gif","navi/navi_impressum_on.gif");

function openwindow(url) {
	window.open(url,"helpwindow","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=683,height=547,screenX=0,screenY=0,top=0,left=0");
}