function popUp(URL)
{
    id = new Date().getTime();
    eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=430,height=426');");
}

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;