// JavaScript Dokument - http://www.webmasterworld.com/forum21/11165.htm
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";
	}
}