function isValidEmail(strEmail) {
    var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
    if (strEmail.match(emailExp)) {
        return true;
    }
    else {
        return false;
    }
}

function ShowValitationMessage(messageContainerForm, validationContainerId) {
    $(messageContainerForm).find('#' + validationContainerId).attr('class', 'visible error');
}

function HideValidationMessage(messageContainerForm, validationContainerId) {
    $(messageContainerForm).find('#' + validationContainerId).attr('class', 'hidden');
}