function switchToCSSFile(s) {
	s=(s)?s:this.getAttribute('title');
	var l=document.getElementsByTagName("link");
	for(i=0;i< l.length; i++) {
		if(l[i].getAttribute("rel").indexOf("style") != -1 && l[i].getAttribute("title")) {
			l[i].disabled = true;
			if(l[i].getAttribute("title") == s)	{
				l[i].disabled = false;
			}
		}
	}
}

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"; 
		}
		if(anchor.getAttribute("href") && anchor.getAttribute("rel") == "appendix") {
			anchor.target = "_blank"; 
		}
	} 
} 
window.onload = externalLinks;