function hider(childID) {
	var child = document.getElementById(childID);
	
	if (child.className == "collapsed") {
		child.className = "expanded";
		eval("document." + childID + "_bullet.src = 'arrow2.gif'");
	}
	else {
		child.className = "collapsed";
		eval("document." + childID + "_bullet.src = 'arrow.gif'");
	}
}

function opencategory(id, name) {
	document.gotocat.category.value = id;
	document.gotocat.cname.value = name;
	var i, x = "", a = document.getElementsByTagName("div"); 
	for(i=0;a&&i<a.length;i++) 
	{
		if (a[i].className == "expanded") x = x + a[i].id.substr(1) + "|";
	}
	document.gotocat.show.value = x;
	document.gotocat.submit();
}