function newWinLinks() {
	for (var i=0; i<document.links.length; i++) {
		if (document.links[i].className == "popup") {
			document.links[i].onclick = newWindow;
		}
	}
}

function newWindow() {
	var policyWindow = window.open(this.href, "popup", "width=600, height=500, scrollbars=yes");
	return false;
}

addLoadEvent(newWinLinks);