extending c# textbox control
<p>I am extending the textBox control, and i want to call a javascript function on its OnLoad(EventArgs e).  how can i do this? </p>

<pre><code>public partial class MyTextBox: TextBox 
{
 protected override void OnLoad(EventArgs e)  
    {  
        base.OnLoad(e);   
       //call to a javascript function?               
    }  
}  
</code></pre>
