title: How do i make a checkbox fire a function?
body: <p>I have a checkbox inside a &lt;label&gt; and i want that checkbox, when checked or unchecked, to trigger a function. 
  I attached a onchange trigger to the checkbox but in IE6 the trigger only fires after the focus is turned away from the checkbox, while in FF3 and Chrome it fires right away.
  I removed the onchange trigger and attached a onclick trigger to the &lt;label&gt; but now the trigger fires twice when the label is clicked once (does enyone know why?)...</p>
  
  <p>My question is: how can i make the checkbox fire a function when it is checked or unchecked by a click on it or on it's label.</p>
  
  <p>Thanks.</p>