function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}



// make external links open in a new window
// just add a class 'external' to any link that you want to open in a new window
function externalLinks() {
	if(!document.getElementsByTagName) return false;
	var links = document.getElementsByTagName('a');
	for (var i=0; i<links.length; i++) {
		var thislink = links[i];
		if (thislink.getAttribute('rel')=='extLink'){
			thislink.setAttribute('title','Opens in a new window');
			thislink.onclick = function(){
				window.open(this.href);
				return false;
			}
		}
	}	
}