function openZoom(strUrl) {
var width = 640;
var height = 510;
	if(arguments[1]) {
		width = arguments[1];
	}
	if(arguments[2]) {
		height = arguments[2];
	}

	var newWin = window.open(strUrl,'zoom','menubar=no, resizable=no, location=no, status=yes, width=' + width + ',height=' + height);
}