// Pops up a URL in a window with the right properties for us. 
function popUp(URL) {
  day = new Date();
  id = day.getTime();
  eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,statusbar=0,menubar=0,resizable=1,width=600,height=700');");
}