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 toggleNav(theid) {
	if (document.getElementById(theid)) {
		if (document.getElementById(theid).style.display == "none") {
			document.getElementById(theid).style.display = "block";
		}else{
			document.getElementById(theid).style.display = "none";
		}
	}
	return false;
}