function externalLinks() {  
		 	
	if (!document.getElementsByTagName) return;  
			
	var anchors = document.getElementsByTagName("a");  
	for (var i = 0; i < anchors.length; i++) {  
		var anchor = anchors[i];  
		
		anchor.onfocus = function(){ this.blur() };
		
		if (anchor.getAttribute("href") &&  anchor.getAttribute("rel") == "external")  
			anchor.target = "_blank";  
	}  

}


function popupWindow(myurl, myname, w, h, scroll){
	var xpos = (screen.width) ? (screen.width - w) / 2 : 0;
	var ypos = (screen.height) ? (screen.height - h) / 2 : 0;
	var settings = 'height=' + h + ',width=' + w + ',top=' + ypos + ',left=' + xpos + ',scrollbars=' + scroll +',resizable';
	win = window.open(myurl,myname,settings);
}


	
window.onload = externalLinks;