if (document.images) {
   
     button1 = new Image
     button2 = new Image
	 
	 button3 = new Image
     button4 = new Image
	 
	 button5 = new Image
     button6 = new Image
	 
	 button7 = new Image
     button8 = new Image
	 
	 button9 = new Image
     button10 = new Image
	 
	 button11 = new Image
     button12 = new Image
	 
	 button13 = new Image
     button14 = new Image
	 
	 button15 = new Image
     button16 = new Image
	 
	 button17 = new Image
     button18 = new Image
	 
	 button19 = new Image
     button20 = new Image
	 
	 button21 = new Image
     button22 = new Image
	 
	 button23 = new Image
     button24 = new Image
	 
	 button25 = new Image
     button26 = new Image
	 
	 button27 = new Image
     button28 = new Image
	 
	 button29 = new Image
     button30 = new Image
	 
	 	 
     button1.src = 'http://www.okaero.com/wp-content/themes/okaero/images/about.jpg'
     button2.src = 'http://www.okaero.com/wp-content/themes/okaero/images/about-hvr.jpg'
	 
	 button3.src = 'http://www.okaero.com/wp-content/themes/okaero/images/summit1.jpg'
     button4.src = 'http://www.okaero.com/wp-content/themes/okaero/images/summit1-hvr.jpg'
	 
	 button5.src = 'http://www.okaero.com/wp-content/themes/okaero/images/members.jpg'
     button6.src = 'http://www.okaero.com/wp-content/themes/okaero/images/members-hvr.jpg'
	 
	 button7.src = 'http://www.okaero.com/wp-content/themes/okaero/images/news.jpg'
     button8.src = 'http://www.okaero.com/wp-content/themes/okaero/images/news-hvr.jpg'
	 
	 button9.src = 'http://www.okaero.com/wp-content/themes/okaero/images/forum.jpg'
     button10.src = 'http://www.okaero.com/wp-content/themes/okaero/images/forum-hvr.jpg'
	 
	 button11.src = 'http://www.okaero.com/wp-content/themes/okaero/images/resources.jpg'
     button12.src = 'http://www.okaero.com/wp-content/themes/okaero/images/resources-hvr.jpg'
	 
	 button13.src = 'http://www.okaero.com/wp-content/themes/okaero/images/career.jpg'
     button14.src = 'http://www.okaero.com/wp-content/themes/okaero/images/career-hvr.jpg'
	 
	 button15.src = 'http://www.okaero.com/wp-content/themes/okaero/images/education.jpg'
     button16.src = 'http://www.okaero.com/wp-content/themes/okaero/images/education-hvr.jpg'
	 
	 button17.src = 'http://www.okaero.com/wp-content/themes/okaero/images/t1.png'
     button18.src = 'http://www.okaero.com/wp-content/themes/okaero/images/t2.png'
	 
	 button19.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo1.jpg'
     button20.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo1-hvr.jpg'
	 
	 button21.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo2.jpg'
     button22.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo2-hvr.jpg'
	 
	 button23.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo3.jpg'
     button24.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo3-hvr.jpg'
	 
	 button25.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo4.jpg'
     button26.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo4-hvr.jpg'
	 
	 button27.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo5.jpg'
     button28.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo5-hvr.jpg'
	 
	 button29.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo6.jpg'
     button30.src = 'http://www.okaero.com/wp-content/themes/okaero/images/logo6-hvr.jpg' 
}


function expand(s)
{
  var td = s;
  var d = td.getElementsByTagName("div").item(0);

  td.className = "menuHover";
  d.className = "menuHover";
}

function collapse(s)
{
  var td = s;
  var d = td.getElementsByTagName("div").item(0);

  td.className = "menuNormal";
  d.className = "menuNormal";
}


// JavaScript Document

var persistmenu="yes" //"yes" or "no". Make sure each SPAN content contains an incrementing ID starting at 1 (id="sub1", id="sub2", etc)
var persisttype="sitewide" //enter "sitewide" for menu to persist across site, "local" for this page only

if (document.getElementById){ //DynamicDrive.com change
document.write('<style type="text/css">\n')
document.write('.submenu{display: none;}\n')
document.write('</style>\n')
}

function SwitchMenu(obj){
	if(document.getElementById){
	var el = document.getElementById(obj);
	var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change
		if(el.style.display != "block"){ //DynamicDrive.com change
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu") //DynamicDrive.com change
				ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}

function get_cookie(Name) { 
var search = Name + "="
var returnvalue = "";
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) { 
offset += search.length
end = document.cookie.indexOf(";", offset);
if (end == -1) end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset, end))
}
}
return returnvalue;
}

function onloadfunction(){
if (persistmenu=="yes"){
var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
var cookievalue=get_cookie(cookiename)
if (cookievalue!="")
document.getElementById(cookievalue).style.display="block"
}
}

function savemenustate(){
var inc=1, blockid=""
while (document.getElementById("sub"+inc)){
if (document.getElementById("sub"+inc).style.display=="block"){
blockid="sub"+inc
break
}
inc++
}
var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
var cookievalue=(persisttype=="sitewide")? blockid+";path=/" : blockid
document.cookie=cookiename+"="+cookievalue
}

if (window.addEventListener)
window.addEventListener("load", onloadfunction, false)
else if (window.attachEvent)
window.attachEvent("onload", onloadfunction)
else if (document.getElementById)
window.onload=onloadfunction

if (persistmenu=="yes" && document.getElementById)
window.onunload=savemenustate