function SubmitForm(e, btnId, doValidation, postBackUrl)
{
    if (e.keyCode && e.keyCode == 13)
    {
        var postBackUrl = (typeof postBackUrl == 'undefined') ? "" : postBackUrl;    
        
        try
        {
            WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions(btnId, "", doValidation, "", postBackUrl, false, true));
        }
        catch(err)
        {
            __doPostBack(btnId,'');
        }        
    }
}