// Advanced Expanding Category Link JS
// Copyright Milos Homola (c)2006

catFather = new Image();
catFather.src = "images/toplevclosed.gif";

catFatherOpen = new Image();
catFatherOpen.src = "images/toplevopen.gif";

function catTree(categ, imgname){
	var subcat;
	if (subcat = document.getElementById('cat'+categ)) {
		var visible = (subcat.style.display!='none');
		if(visible){
			subcat.style.display='none';
			eval("document."+imgname+".src=catFather.src");
		}else{
			subcat.style.display='block';
			eval("document."+imgname+".src=catFatherOpen.src");
			
		}
	}

	return false;
}