Hide popup is appearing while page is loading
<p>I am using VS 2010 for developing a web application. I used modal popup for adding/editing some information in page and the panel have the property <code>visible = false</code> or style <code>display: none</code>. </p>

<p>But when page is loading at that time all the pop up is appearing for a time being and then it is disappearing.</p>

<p>So how can I avoid the appearing/disappearing of the popup while page loading?</p>
