// JavaScript Document

function initNavigation(seq){
	var nav = document.getElementById("topmenu");
	nav.menu = new Array();
	nav.current = null;
	nav.menuseq = 0;
	navLen = nav.childNodes.length;
	
	allA = nav.getElementsByTagName("a");
	for(k = 0; k < allA.length; k++) {

		allA.item(k).onmouseover = allA.item(k).onfocus = function(){
			nav.isOver = true;
		}
		allA.item(k).onmouseout = allA.item(k).onblur = function(){
			nav.isOver = false;
			//alert(event.button);
			//setTimeout(
			function seqOut(){
				if (nav.isOver == false) {
					if (nav.menu[seq]) {
						nav.menu[seq].onmouseover();	
					} else if(nav.current) {			
						if( seq != 0)					
							if (nav.current.submenu)						
								nav.current.submenu.style.display = "none";
							nav.current = null;					
					}
				}
			}//, 500);
		}
	}

	for (i = 0; i < navLen; i++) {
		navItem = nav.childNodes.item(i);
		if (navItem.tagName != "LI")
			continue;

		navAnchor = navItem.getElementsByTagName("a").item(0);
		navAnchor.submenu = navItem.getElementsByTagName("ul").item(0);
		navAnchor.imgEl = navItem.getElementsByTagName("img").item(0);
		
		navAnchor.onmouseover = navAnchor.onfocus = function(){
			if (nav.current) {		
				if( seq !=0)
				//nav.current.parentNode.className = nav.current.parentNode.className.replace(" over","");			
				nav.current.imgEl.src = nav.current.imgEl.src.replace("_on.gif", ".gif");
				if (nav.current.submenu)				
					nav.current.submenu.style.display = "none";
				nav.current = null;
			}
			
			if (nav.current != this) {
				if( seq !=0)
		//this.submenu.parentNode.className +=" over";
		this.imgEl.src = this.imgEl.src.replace(".gif", "_on.gif");
				if (this.submenu)		{						
					this.submenu.style.display = "block";
				}
				nav.current = this;
			}
			nav.isOver = true;
		}
		nav.menuseq++;
		nav.menu[nav.menuseq] = navAnchor;
	}
	if (nav.menu[seq])
		nav.menu[seq].onmouseover();
}