document.onclick = function(e)
{
var target = e ? e.target : window.event.srcElement;
while (target && !/^(a|body)$/i.test(target.nodeName))
{
target = target.parentNode;
}
if (target && target.getAttribute('rel')
&& target.rel == 'external')
{
var external = window.open(target.href);
return external.closed;
}
}
function popup(url,width,height,imgsrc) {
var imgDir = "";
var left = Math.floor( (screen.width - width) / 2);
var top = Math.floor( (screen.height - height) / 2);
var features = "width=" + width + ", height=" + height + ", menubar=no, location=no, resizable=yes, toolbar=no, status=no, left=" + left + ", top=" + top;
var showimg = imgDir + imgsrc;
var strHTML = "![](\"")
";
imgWin = window.open(url, "imgwin", features);
if(imgWin && imgsrc != ""){
imgWin.window.focus();
imgWin.document.open();
imgWin.document.write(strHTML);
imgWin.document.close();
}
}