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

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 sidebar() {

var side = document.getElementById('sidebar').clientHeight;
var wrap = document.getElementById('wrapper').clientHeight;
var marg = 180;

if (wrap > side) {

document.getElementById('sidebar').style.height=(wrap - 30) + "px";
document.getElementById('sidebar_contact').style.marginTop= (marg +wrap-side) + "px";

}
}
*/

function showNav () { 

	// var vis = (box.checked) ? "block" : "none"; 
	document.getElementById('navOverlay').style.display = "block";
	
} 

function hideNav () { 

	// var vis = (box.checked) ? "block" : "none"; 
	document.getElementById('navOverlay').style.display = "none";
	
} 

function goto(url) {

	window.location = url+'.php';

}