var activeMenu = null;

function showMenu(){

	if(this == activeMenu){

		this.className = "";

		getNextSiblingByElement(this).style.display = "none";

		activeMenu = null;

	}else{

		if(activeMenu){

			activeMenu.className = "";

			getNextSiblingByElement(activeMenu).style.display = "none";

		}

		this.className = "active";

		getNextSiblingByElement(this).style.display = "block";

		activeMenu = this;

	}

}



function resetMenu(obj){

	if(document.getElementById){

	var el = document.getElementById(obj);

	var ar = document.getElementById("menu").getElementsByTagName("ol"); 

		if(el.style.display != "block"){ 

			for(var i=0; i <ar.length; i++){

				if (ar[i].className=="submenu") 

				ar[i].style.display = "none";

			}

			el.style.display = "block";

		}else{

			el.style.display = "none";

		}

	}

}



if(!window.Node){// Node Functions

	var Node = {ELEMENT_NODE : 1, TEXT_NODE : 4};

}

function checkNode(node, filter){

	return (filter == null || node.nodeType == Node[filter] || node.nodeName.toUpperCase() == filter.toUpperCase());

}

function getChildren(node, filter){

	var result = new Array();

	var children = node.childNodes;

	for(var i = 0; i < children.length; i++){

		if(checkNode(children[i], filter)) result[result.length] = children[i];

	}

	return result;

}

function getChildrenByElement(node){

	return getChildren(node, "ELEMENT_NODE");

}

function getFirstChild(node, filter){

	var child;

	var children = node.childNodes;

	for(var i = 0; i < children.length; i++){

		child = children[i];

		if(checkNode(child, filter)) return child;

	}

	return null;

}

function getFirstChildByText(node){

	return getFirstChild(node, "TEXT_NODE");

}

function getNextSibling(node, filter){

	for(var sibling = node.nextSibling; sibling != null; sibling = sibling.nextSibling){

		if(checkNode(sibling, filter)) return sibling;

	}

	return null;

}

function getNextSiblingByElement(node){

	return getNextSibling(node, "ELEMENT_NODE");

}