title: Is the any way to make the window.onload function execute only one time?
body: <p>I have a <code>window.onload</code> function, which loads an AJAX content. It fires also when the visitor is viewing another page and try to reload it (which is also called with AJAX by the way).  The <code>window.onload</code> function executes again.</p>
  
  <p>Is the any way to make the <code>window.onload</code> function execute only one time (by storing in cache or something)?</p>