browser_version = parseInt(navigator.appVersion);
browser_type = navigator.appName;

if (browser_type == "Microsoft Internet Explorer" && (browser_version >= 4)) {
document.write("<link REL='stylesheet' HREF='tranq_ie.css' TYPE='text/css'>");
} 

else  {
document.write("<link REL='stylesheet' HREF='tranq.css' TYPE='text/css'>");
}

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")) {
			var rel = anchor.getAttribute("rel");
			if (rel == "external") {
				anchor.target = "_blank";			
			} else if (rel.substring(0,9) == "external:") {
				anchor.target = rel.substring(9, rel.length);
			} 
		}
	}
}
window.onload = externalLinks;