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;