function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	var forms = document.getElementsByTagName("form");
	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<forms.length; i++) {
		var form = forms[i];
		if (form.getAttribute("action") && form.getAttribute("rel") == "external")
		{
			form.target = "_blank";
		}
	}
}
window.onload = externalLinks;