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;

function initPage()
{
	var nav = document.getElementById("navigation");
	if (nav)
	{
		var nodes = nav.getElementsByTagName("li");
		for (var i = 0; i < nodes.length; i++)
		{
			nodes[i].onmouseover = function () 
			{
				this.className += " hover";
			}
			nodes[i].onmouseout = function ()
			{
				this.className = this.className.replace(" hover", "");
			}
		}
	}
}
if (window.attachEvent)
	window.attachEvent("onload", initPage);