function openPopup() {
	if (!document.getElementsByTagName) return false;
	var links = document.getElementsByTagName("a");
	
	for (i=0; i<links.length; i++) {
		
		if (links[i].className.match("popup")) {
			links[i].onclick=(function(obj, num){
			return function(){
				var newWindow =window.open(obj.href, num, "width=590,height=700,scrollbars=1,resizable=0");
				newWindow.focus();
				return false;
			};})(links[i],i);
		}
	}
}

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


addLoadEvent(openPopup);