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 = "_new"
		}
	}   
}   

window.onload = ExternalLinks;