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

function doPopups() {
  if (!document.getElementsByTagName) return false;
  var links=document.getElementsByTagName("a");
  for (var i=0; i < links.length; i++) {
    if (links[i].className.match("popup")) {
      links[i].onclick=function() {
      // Next two lines should be on one line
        window.open(this.href, "", "top=40,left=40,width=770,height=625");
        return false;
      }
    }
  }
}

function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") &&
		anchor.getAttribute("rel") == "external")
		anchor.target = "_blank";
	}
}

function doVideos () {
  if (!document.getElementsByTagName) return false;
  var links=document.getElementsByTagName("a");
  for (var i=0; i < links.length; i++) {
    if (links[i].className.match("video")) {
      links[i].onclick=function() {
      // Next two lines should be on one line
        var vidwin = window.open(this.href, "vidwin", "top=40,left=40,width=380,height=360,scrolling=no");
        vidwin.focus();
        return false;
      }
    }
  }
}

addLoadEvent(externalLinks);
addLoadEvent(doPopups);
addLoadEvent(doVideos);