function selectall(f){
	if(f.checked == true){
		var sel = true;
	}else{
		var sel = false;
	}
	for(var x=0; x<=40; x++){
		if(document.getElementsByName("local_cat_" + x)[0]){
			document.getElementsByName("local_cat_" + x)[0].checked = sel;
		}else{
			return;
		}
	}
}

function gamelist_show(id, im){
	if(document.getElementById("kat_"+id)){
		var elem = document.getElementById("kat_"+id);
		var dis = elem.style.display;
		if(dis == "none"){
			elem.style.display = "inline";
			im.src = "http://www.browsergame-ads.de/style/images/icon_dropup.png";
		}else{
			elem.style.display = "none";
			im.src = "http://www.browsergame-ads.de/style/images/icon_dropdown.png";
		}
	}
	
}