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

function checkPopUp() {
	if (!document.getElementsByTagName) return false;
	var lnks = document.getElementsByTagName("a");
	for (var i=0; i<lnks.length; i++) {
		if (lnks[i].getAttribute("class") == "popup") {
			lnks[i].onclick = function() {
				popUp(this.getAttribute("href"));
				return false;
			}
		}
	}
}

function popUp(winURL) {
	window.open(winURL, "popup","width=440,height=480");
}

addLoadEvent(checkPopUp);