function checkForm(form, wrongFormatText)
{
    for (var i = 0; i < form.elements.length; i++)
    {
        var elmt = form.elements[i];
        var validateExpression = elmt.getAttribute('validationExpression');
        if (validateExpression != undefined && !elmt.value.match(new RegExp(validateExpression)))
        {
            alert(wrongFormatText.replace("{0}", elmt.name));
            return false;
        }
    }
    return true;    
}