Javascript confirm box blocks background
<p>I have a button in a GridView, and when it is clicked it triggers the </p>

<pre><code>protected void GridView_RowCommand(object sender, GridViewCommandEventArgs e)
</code></pre>

<p>event. In there I have some logic and at the end I am registering some javascript that generates a pop up. The issue I am having is that for the confirm pop up when it comes up. It shows a blank screen on the background and when I click cancel it shows it back again, otherwise it navigates to another page... But while the box is up the background is white.</p>

<p>I need to make it so that it shows like the "Alert" pop up that still shows the website in the background. Please note I can only make this work with these pop ups as they are used throughout the website ("not confirm ones"). This is the first confirm box I have had to add but there are many Alerts on other pages. So would not like to change them as it will be too much work (150+ pages website).</p>

<p>Thank you</p>
