// Function to open links in new windows (w3c aproved)
function externalLinks() {
	if (!document.getElementsByTagName) return;

	var anchors = document.getElementsByTagName('a');
	for (var j = 0; j < anchors.length; j++) {
		var alink = anchors[j];
		if (alink.getAttribute('href') && alink.getAttribute('rel') == 'external') {
			alink.target = '_blank';
		}
	}
}


sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("li");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" over";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" over\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);