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/home_1.gif","navi/kanzlei_1.gif","navi/rgbs_1.gif","navi/ra_1.gif","navi/team_1.gif","navi/akt_1.gif","navi/ktk_1.gif","navi/imp_1.gif");

function openwindow(url) {
	window.open(url,"helpwindow","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,resizable=yes,copyhistory=no,width=539,height=636,screenX=0,screenY=0,top=0,left=0");
}