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"; 
	} 
} 
window.onload = externalLinks;


function tron(imgName)
   {
    if (document.images)
     {
      imgOn=eval(imgName + "on.src");
      document.getElementById(imgName).src= imgOn;
     }
   }
   
function troff(imgName)
 {
   if (document.images)
    {
      imgOff=eval(imgName + "off.src");
      document.getElementById(imgName).src= imgOff;
    }
 }