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;

$(document).ready(function() {
	$('#topnav ul').superfish({
            delay:       1000,                            // one second delay on mouseout
            animation:   {opacity:'show',height:'show'},  // fade-in and slide-down animation
            speed:       'slow',                          // faster animation speed
            autoArrows:  false,                           // disable generation of arrow mark-up
            dropShadows: false                            // disable drop shadows
	});
});