function addLoadEvent(func) { 
	  var oldonload = window.onload; 
	  if (typeof window.onload != 'function') { 
	    window.onload = func; 
	  } else { 
	    window.onload = function() { 
	      if (oldonload) { 
	        oldonload(); 
	      } 
	      func(); 
	    } 
	  } 
	} 
function anchorExt()
{
	var anchors = document.getElementsByTagName('a');
	for(var i=0;i<anchors.length;i++)
	{
		if (anchors[i].getAttribute("href") && anchors[i].getAttribute("rel") == "external")
		{
			anchors[i].onclick = function()
			{
				window.open(this.href);
				return false;
			}
		}
	}
}
addLoadEvent(anchorExt);