function doSearch(btnID)
{
    var myKeyCode = 0;

    if (document.all)
    {
        // Internet Explorer 4+
        myKeyCode =  event.keyCode;
    } else if (document.getElementById)
    {
        // Mozilla / Opera / etc.
        myKeyCode = event.which;
    }

    if (myKeyCode == 13)
    {
        var btn = document.getElementById(btnID);
        
        if (btn)
        {
            btn.click();

            event.cancelBubble = true;
            if (event.stopPropagation)
                event.stopPropagation();

            return false;
        }
    }

    return true;
}