function validate_form(){

//=========================================================
//Begin Validate First Name Field

document.getElementById('md5').value=hex_md5(agraform.firstname.value);

	if (agraform.firstname.value == "")
  {
    alert("Please enter a value for the First Name field.");
    agraform.firstname.focus();
    return (false);
  }

  
//End Validate First Name Field
//=========================================================


//=========================================================
//Begin Validate Last Name Field

	if (agraform.surname.value == "")
  {
    alert("Please enter a value for the Surname field.");
    agraform.surname.focus();
    return (false);
  }
  

//End Validate Last Name Field
//=========================================================


//=========================================================
//Begin Validate Telephone Field

	if (agraform.telephone.value == "")
  {
    alert("Please enter a value for the Telephone field.");
    agraform.telephone.focus();
    return (false);
  }  

//End Validate Telephone Field

//=========================================================


//=========================================================
//Begin Validate Enquiry Field

	if (agraform.enquiry.value == "")
  {
    alert("Please enter an enquiry.");
    agraform.enquiry.focus();
    return (false);
  }

  
//End Validate Enquiry Field

//=========================================================

  return (true);

  }