function popup(url1,width,height,toolbar,screenX,screenY,top,left,location,dirs,status,menu,scroll,resize,windowname)
{
  if ((navigator.appName.indexOf("Microsoft") != -1) ||
  (2 < (navigator.appVersion + "3").charAt(0)))
    {
    /*params     += "toolbar=" + toolbar;*/
    params     = ",screenX=" + screenX;
    params     = ",screenY=" + screenY;
    params     = ",top=" + top
    params     = ",left=" + left;
    params     = ",location=" + location;
    params     += ",directories=" + dirs;
    params     += ",status=" + status;
    params     += ",menubar=" + menu;
    params     += ",scrollbars=" + scroll;
    params     += ",resizable=" + resize;
    params     += ",width=" + width;
    params     += ",height=" + height;
    win = window.open(url1, windowname, params);

    if (!win.opener)
      {
      win.opener = window;
      }
    }
}