var width=500;
var height=500;

function popupImageWindow(url, width, height) {
    window.open(url,'file','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,resizable=yes,copyhistory=no,width=' + width + ',height=' + height + ',screenX=150,screenY=150,top=50,left=50');
}

function popupSitemap(url, width, height) {
    window.open(url,'file','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=' + width + ',height=' + height + ',screenX=150,screenY=150,top=50,left=50');
}

function parentchange(url){
    window.opener.location.href = url;
}