window.name = "cover_page";
var win=null;
function cover_window(winName, newURL) {
  win = window.open("",'cover_view','width=524,height=694,resizable=no,menubar=no,toolbar=no,location=no,status=no,scrollbars=yes,titlebar=yes,left=20,top=0');
  win.location.href = newURL;
  if (window.focus) {win.focus()}
}