function initPage()
{
	var n = document.getElementById("side-functional");
	var _links = new Array();
	if (n)
	{
		var _titles = n.getElementsByTagName("a");
		var _btns = n.getElementsByTagName("a");
		for (var i = 0; i < _titles.length; i++){
			_links.push(_titles[i]);
		}
		for (var i = 0; i < _btns.length; i++){
			if(_btns[i].className.indexOf("drop-btn") != -1) {
				_links.push(_btns[i]);
			}
		}
		for (var i = 0; i < _links.length; i++){
			if(_links[i].parentNode.getElementsByTagName('ul').length)
			_links[i].onclick = function () {
				if (this.parentNode.className.indexOf("active") != -1)
					this.parentNode.className = this.parentNode.className.replace("active", "");
				else
					this.parentNode.className += " active";
				return false;
			}
		}
		
	}
}

if (window.addEventListener)
	window.addEventListener("load", initPage, false);
else if (window.attachEvent)
	window.attachEvent("onload", initPage);