/**
* Open a link in a external window by adding rel="external" to your link
* http://www.sitepoint.com/article/standards-compliant-world/3
* 
* Before:
*   <a href="document.html" target="_blank">external link</a>
* After:
*   <a href="document.html" rel="external">external link</a>
*/
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;