title: How can I make a window in 100% height and width with ExtJs?
body: <p>This one didn't work:</p>
  
  <pre><code>new Ext.Window({
      width:'100%',
      height: '100%'
  }).show();
  </code></pre>
  
  <p>I has do be fluid, so that when the window is resized it has to change its diemensions.</p>