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

function handleExternalLinks() { // function makes sure that external links open in new window
	var hostName = window.location.hostname;
	var links = document.getElementsByTagName("a");
	for(var i = 0; i < links.length; i++) {
		if(links[i].href.indexOf(hostName) == -1) {
			var curTitle = (links[i].getAttribute("title")) ? links[i].getAttribute("title") + " - ": "";
			links[i].setAttribute("target", "_blank");
			links[i].setAttribute("title",  curTitle + "opens in new window");
		}
	}
}
addLoadEvent(handleExternalLinks);