$(document).ready(function() { 

			// rel external js
			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";
			}
			}
			window.onload = externalLinks;
			
			});