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";
 }
}

function addLoadEvent(func){
	var oldOnLoad = window.onload;
	if(typeof window.onload != 'function'){ 
		window.onload = func;
	}
	else{ 
		window.onload = function(){ 
			oldOnLoad();
			func();
		}
	}
}

siteOnLoad = function(){
	copyrightYear();
	externalLinks();
}

addLoadEvent(siteOnLoad);

function copyrightYear(){
	if(document.getElementById('insertYear')) document.getElementById('insertYear').innerHTML = new Date().getFullYear();
}