if(navigator.userAgent.indexOf("Firefox")!=-1)
{
	var versionindex=navigator.userAgent.indexOf("Firefox")+8
	
	if (parseInt(navigator.userAgent.charAt(versionindex))<2)
	{
		alert("This web site support only Firfox 2.0 and above.")
	}
	else
	{
		gen_menu()
	}
}
else
{
	gen_menu()
}	


function gen_menu()
{
	function buildsubmenus_horizontal(){
	
	var menuids=new Array()
	
	var tags=document.getElementsByTagName("ul")
	
	for(i=0,k=0;i<tags.length;i++)
	{
		
		if(tags[i].id=="treemenu1")
		{
			menuids[k]="treemenu1"
			k++
		}
		if(tags[i].id=="treemenu2")
		{
			menuids[k]="treemenu2"
			k++
		}
	}
	
		for (var i=0; i<menuids.length; i++){
			var ultags=document.getElementById(menuids[i]).getElementsByTagName("ul")
			var litags=document.getElementById(menuids[i]).getElementsByTagName("li")
			
			for(var t=0;t<litags.length;t++)
			{
				//alert(litags[t].id)
				if(litags[t].id=="main")
				{
					/*litags[t].onmouseover=function(){
						this.getElementsByTagName("img")[0].src="menu_images/mac_pic1.gif"
					}
					litags[t].onmouseout=function(){
						this.getElementsByTagName("img")[0].src="menu_images/mac_pic2.gif"
					}*/
				}
			}
			
			for (var t=0; t<ultags.length; t++){
					if (ultags[t].parentNode.parentNode.id==menuids[i]){ //if this is a first level submenu
						ultags[t].style.top=(ultags[t].parentNode.offsetHeight-1)+"px" //dynamically position first level submenus to be height of main menu item
						ultags[t].parentNode.getElementsByTagName("a")[0].className="mainfoldericon"
					}
					else{ //else if this is a sub level menu (ul)
					//alert(ultags[t].parentNode.offsetWidth)
						ultags[t].style.left=(ultags[t].parentNode.offsetWidth)+"px"
						ultags[t].parentNode.getElementsByTagName("a")[0].className="subfoldericon"
					}
				ultags[t].parentNode.onmouseover=function(){
				this.getElementsByTagName("ul")[0].style.visibility="visible"
					if(this.id=="main")
					{
						//this.getElementsByTagName("img")[0].src="menu_images/mac_pic1.gif"
					}
				}
			
				ultags[t].parentNode.onmouseout=function(){
					this.getElementsByTagName("ul")[0].style.visibility="hidden"
					if(this.id=="main")
					{
						//this.getElementsByTagName("img")[0].src="menu_images/mac_pic2.gif"
					}
				}
			}
		}
	}

	if (window.addEventListener)
	window.addEventListener("load", buildsubmenus_horizontal, false)
	else if (window.attachEvent)
	window.attachEvent("onload", buildsubmenus_horizontal)
}