function GoNerdz() {
    var newWindow, toppy, lefty, whereto;
    toppy = (screen.availHeight-680)/2;
    lefty = (screen.availWidth-760)/2;
    newWindow =window.open('','Fullsize','scrollbars=no,width=760,height=680,top='+toppy+', left='+lefty);
    newWindow.document.open();
    newWindow.document.location.href='nerdz/nerdzdemo.html';
    newWindow.document.close();
    newWindow.focus();
}