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") == "blank")anchor.target = "_blank"; 
		} 
	} 

$(document).ready(function(){
	externalLinks();
});