function check_text_enter1(e, sender, senderId, btnObjID)
{
    var keynum;
    var keychar;
    var numcheck;
    if(window.event) // IE
    {
        keynum = e.keyCode;
    }
    else if(e.which) // Netscape/Firefox/Opera
    {
        keynum = e.which;
    }
    
    if(keynum == 13)
    {
        document.getElementById(sender.id.replace(senderId, btnObjID)).click();
        if(window.event)
        {
            window.event.keyCode = 0;
            window.event.returnValue = false;
        }
        
        if(window.event) // IE
        {
            window.event.cancelBubble = true;
        }
        else if(e.stopPropagation)
        {
            e.stopPropagation();
        e.preventDefault();
        }
        
        return false;
    }
}