function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}
function addClass( element, value ) {
	if ( !element.className ) {
		element.className = value;
	} else {
		newClassName = element.className;
		newClassName+= " ";
		newClassName+= value;
		element.className = newClassName;
	}
}

function LinkRollover() {
	if ( !document.getElementsByTagName ) return false;
	if ( !document.getElementById ) return false;
	
	if ( !document.getElementById("links") ) return false;
	var nav = document.getElementById("links");
	highlightSelected(nav.getElementsByTagName("a"));
	
	if ( !document.getElementById("foot") ) return false;
	var foot = document.getElementById("foot");
	highlightSelected(foot.getElementsByTagName("a"));
	return true;
}

function highlightSelected(links) {
	var current_url = window.location.href;
	for(var i=0; i<links.length; i++) {
		var current_link = links[i].getAttribute("href");
		
		if ( current_url.indexOf(current_link) != -1 ) {
			addClass(links[i], "current");
		}
	}
	return true;
}
addLoadEvent(LinkRollover);