window.onload = prepareLinks;
function prepareLinks() {
	var links = document.getElementsByTagName("a");
	for (var i=0; i<links.length; i++) {
		if (links[i].getAttribute("class") == "newWindow") {
			links[i].onclick = function() {
				popUp(this.getAttribute("href"));
				return false;
			}
		}
	}
}

var winRef = null;
function popUp(winURL) {
	winRef = window.open(winURL,"Image");
	winRef.focus();
}