Calculate timespan in JavaScript
<p>I have a .net 2.0 ascx control with a start time and end time textboxes. The data is as follows: </p>

<p>txtStart.Text = 09/19/2008 07:00:00</p>

<p>txtEnd.Text = 09/19/2008 05:00:00</p>

<p>I would like to calculate the total time (hours and minutes) in JavaScript then display it in a textbox on the page. </p>
