function activateMenu(bgImg) {
	/* set hover image in menu options and  */
	
	var menu = document.getElementById('menu');
	
	var menuItems = menu.childNodes.length;
	var item = menu.firstChild;
	
	for(i=1; i <= menuItems; i++) {
		if(item.tagName == 'LI') {
			/* list items */
		
			item.onmouseover = function() {
				this.style.backgroundImage = "url(images/"+bgImg+")";
			}
		
			item.onmouseout = function() {
				this.style.backgroundImage = "url(images/buttonBg.gif)"
			}
		
			/* links */
		
			item.firstChild.onmouseover = function() {
				this.style.color = "#FFF"
			}
		
			item.firstChild.onmouseout = function() {
				this.style.color = "#666"
			}
		}
		
		item = item.nextSibling;
	}
	
}