// Advanced Expanding Category Link MOD - JavaScript by convict.sk
//      Use only with this MOD

var wecandoit = false;
if (parseInt(navigator.appVersion) >= 5 && navigator.appName != "Opera" || navigator.userAgent.indexOf("MSIE") != -1) {
    wecandoit = true;
}

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

catFatherHover = new Image();
catFatherHover.src = "images/cplushover.gif";

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

catFatherOpenHover = new Image();
catFatherOpenHover.src = "images/cminushover.gif";

function catTree(categ, imgname){
	if(wecandoit){
		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;
}