function validate_form(formulario)
{ 
	error=''		
		if (formulario.first_name.value=="") error=error + 'B01-03: You must enter (first name) \n'
		if (formulario.last_name.value=="") error=error + 'B01-04: You must enter (last name) \n'		
		if (formulario.organization.value=="") error=error + 'B01-04: You must enter (organization) \n'		
		if (formulario.phone.value=="") error=error + 'B01-04: You must enter (phone) \n'
		if (formulario.email.value=="") error=error + 'B01-04: You must enter (email) \n'		
		if (formulario.message.value=="") error=error + 'B01-04: You must enter (message) \n'
			
		if (error)
		{
			alert('Please check it:\n\n'+error);
		}
		document.MM_returnValue = (error == '');
}