/*
 * menu.js - Dropdown menu voor Pollmann.nl
 *
 * Copyright (c) 2009 Michael Peters
 */
 
 
addOnLoad(function()
{
   initMenu();
   document.getElementById("nav").onmouseout=function() { showStaticActive(); }
});

function initMenu() {
   var menuElements= document.getElementById("nav").getElementsByTagName("li");

   for (var i=0; i<menuElements.length; i++) {
	menuElements[i].onmouseover=function() {
		 var menuSubElements = this.getElementsByTagName("ul");
		 hideSubMenus();
		 for (var x=0; x<menuSubElements.length; x++) {
		 	menuSubElements[x].style.visibility="visible";
		 }
	}
	menuElements[i].onmouseout=function() {
		hideSubMenus();
	}
   }

}

function hideSubMenus() {
   var menuElements= document.getElementById("nav").getElementsByTagName("ul");
   for (var i=0; i<menuElements.length; i++) {
   	if (menuElements[i].id == "submenu") {
		menuElements[i].style.visibility="hidden";
	}
  	if (menuElements[i].id == "submenu-active") {
		menuElements[i].style.visibility="hidden";
	}
   }
}
function showStaticActive() {
   var menuElements= document.getElementById("nav").getElementsByTagName("ul");
   for (var i=0; i<menuElements.length; i++) {
   	if (menuElements[i].id == "submenu-active") {
		menuElements[i].style.visibility="visible";
	}
   }
}