function externalLinks(){
if (!document.getElementsByTagName) return;

var anchors = document.getElementsByTagName("a");
var areas = document.getElementsByTagName("area");

	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") anchor.target = "_blank";
	}


	for (var i=0; i<areas.length; i++) {
		var area = areas[i];
		if (area.getAttribute("href") && area.getAttribute("rel") == "external") area.target = "_blank";
	}

}
onloadHandlers[onloadHandlers.length] = 'externalLinks()';
/* need this line if we go onunload*/
window.onload = function(){
	for(var i=0;i<onloadHandlers.length;i++){
		eval(onloadHandlers[i]);
	}
}