function externalLinks() {
		if(!document.getElementsByTagName) return;
			var links,a,i;
			links = document.getElementsByTagName("a");
			for(i=0;i<links.length;i++) {
			 a = links[i];
				 if(a.getAttribute("rel") && a.getAttribute("rel").indexOf("external") > -1) {
				  	a.onclick = function() {
				  	   	 window.open(this.href);
				  	   	  return false;
				  	  }
				  	 }
				    }
				   }