var validEmail = false;

function isValidEmailAddress(obj)
{
   if(obj.value.match(/\b[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b/i))
    {
        document.getElementById('emailError').innerHTML='';
        document.getElementById('emailError').style.display='none';
        validEmail = true; 
        return true;
    }
    else
    {
        document.getElementById('emailError').innerHTML='You must enter in a valid email address.';
        obj.focus();
        validEmail = false; 
        return false;
    }  
}

function ValidateFields()
{
    return validEmail;
}