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