function validRequired(formField,fieldLabel)
{               
        if (formField.value == "" || formField.value == "0")
        {       
                alert('REQUIRED: Please enter ' + fieldLabel +'');
                formField.focus();
                return false;
        }       
                
        return true;
}               


function validateForm(theForm)
{

        if (!validRequired(theForm.Phone,"your Phone Number."))               
                return false;

}