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


// popup windows
function popupWin() {
	if (!document.getElementsByTagName) return false;
	var links=document.getElementsByTagName("a");
	for (var i=0; i < links.length; i++) {
		if (links[i].className.match("popup")) {
			links[i].onclick=function() {	
				window.open(this.href, "", "top=40,left=40,width=600,height=400,resizable=yes,scrollbars=yes");
				return false;
			}
		}
	}
}


// onload events
addLoadEvent(popupWin);