function openDownload(imgid,catid,altid,orignr) {
	breite = 200;
	hoehe = 100;
	links = (screen.width / 2) - (breite / 2);
	oben = (screen.height - hoehe) / 2;
	
	var optionstring = "hotkeys=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no,height="+hoehe+",width="+breite+",left="+links+",top="+oben+"";
	var url = "index.php?style=standard&frame=download&imgid="+imgid+"&catid="+catid+"&altid="+altid+"&orignr="+orignr;
	wnd = window.open(url,"wnd",optionstring);
}

function checkInput() {
	searchval = document.getElementById("searchForm").findstr.value;	
	if (searchval != "" && searchval.length < 3) {
		alert ('Der Suchbegriff muss mindestens 3 Zeichen lang sein!');
		return false;
	}
	return true;
}