call javascript function from code behind on condition

Hi,
 
Let's say we have Javascript Function Called Showalert
 

<script type="text/javascript">
    function Showalert(text1,text2) {
        alert(text1 + text2);
    }
</script>

 

Code Behind will be
 

        if (Condition)
        {
            string Text2 = "Ahmed";
            string Text1 = "My Name Is : ";
            ScriptManager.RegisterStartupScript(this, this.GetType(), "starScript", "Showalert('" + Text1 + "','" + Text2 + "');", true);
        }

 

Hope this help you
 
Regards,
Ahmed Mandour