function blankwin()
{
    var hostname = window.location.hostname;
    hostname = hostname.replace("www.", "").toLowerCase();
    var a = document.getElementsByTagName("a");	

    for (var i = 0; i < a.length; i++)
    {
	    if (check(a[i], hostname)) 
	    {
	        set(a[i]);
	    }
    }
}

function check(obj, hostname)
{
	var href = obj.href.toLowerCase();
	return (href.indexOf("http://") != -1 && href.indexOf(hostname) == -1) ? true : false;				
}

function set(obj)
{
	obj.target = "_blank";
	obj.className = "external";
}