function validate_form_member ( )
{
email1 = document.membersregistration.EmailAddress.value;
email2 = document.membersregistration.EmailAddress2.value;
password = document.membersregistration.pwd.value;
password2 = document.membersregistration.pwd2.value;

	valid = true;

        if ( document.membersregistration.FullName.value == "" )
        {
                alert ( "Please fill in the 'Name' box." );
                valid = false;
        }
		
		else if ( document.membersregistration.EmailAddress.value == "" )
        {
                alert ( "Please fill in the 'Email' box." );
                valid = false;
        }
		
		else if ( document.membersregistration.EmailAddress2.value == "" )
        {
                alert ( "Please confirm your email." );
                valid = false;
        }
		
		else if (email1 != email2) 
		{
				alert ("Email Addresses are different.");
				valid = false;
		}
		
		else if ( password == "" )
        {
                alert ( "Please fill in the 'Password' box." );
                valid = false;
        }
		
		else if ( password2 == "" )
        {
                alert ( "Please confirm your Password." );
                valid = false;
        }
		
		else if (password != password2) 
		{
				alert ("Passwords are different.");
				valid = false;
		}
		
		else if ( document.membersregistration.Country.value == "" )
        {
                alert ( "Please enter your Country" );
                valid = false;
        }
		/*else if ( document.membersregistration.Address.value == "" )
        {
                alert ( "Please enter your Address" );
                valid = false;
        }		
		else if ( document.membersregistration.Town.value == "" )
        {
                alert ( "Please enter your Town/City" );
                valid = false;
        }
		else if ( document.membersregistration.County.value == "" )
        {
                alert ( "Please enter your County" );
                valid = false;
        }
		else if ( document.membersregistration.PostCode.value == "" )
        {
                alert ( "Please enter your post code" );
                valid = false;
        }*/
		
		/*else if ( document.membersregistration.PostCode.value != "" )
		{
				valid = checkPostCode ( document.membersregistration.PostCode.value );
				if (valid == false)
					alert ( "Please enter your correct post code" );	*/
				
		else if ( document.membersregistration.PlaceOfWork.value == "" )
        {
                alert ( "Please enter your Place of Work / Institution" );
                valid = false;
        }
		
		else if ( document.membersregistration.JobTitle.value == "" )
        {
                alert ( "Please enter your Job Title" );
                valid = false;
        }
		
		/* else if ( !document.membersregistration.terms.checked)
        {
                alert ( "You must agree to the terms and conditions" );
                valid = false;
        } */
		
		//}
		
        return valid;
}

function checkPostCode (toCheck) {

  // Permitted letters depend upon their position in the postcode.
  var alpha1 = "[abcdefghijklmnoprstuwyz]";                       // Character 1
  var alpha2 = "[abcdefghklmnopqrstuvwxy]";                       // Character 2
  var alpha3 = "[abcdefghjkstuw]";                                // Character 3
  var alpha4 = "[abehmnprvwxy]";                                  // Character 4
  var alpha5 = "[abdefghjlnpqrstuwxyz]";                          // Character 5
  

  // Array holds the regular expressions for the valid postcodes
  var pcexp = new Array ();

  // Expression for postcodes: AN NAA, ANN NAA, AAN NAA, and AANN NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1,2})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
  
  // Expression for postcodes: ANA NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}[0-9]{1}" + alpha3 + "{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));

  // Expression for postcodes: AANA  NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1}" + alpha4 +"{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
  
  // Exception for the special postcode GIR 0AA
  pcexp.push (/^(GIR)(\s*)(0AA)$/i);
  
  // Standard BFPO numbers
  pcexp.push (/^(bfpo)(\s*)([0-9]{1,4})$/i);
  
  // c/o BFPO numbers
  pcexp.push (/^(bfpo)(\s*)(c\/o\s*[0-9]{1,3})$/i);

  // Load up the string to check
  var postCode = toCheck;

  // Assume we're not going to find a valid postcode
  var valid = false;
  
  // Check the string against the types of post codes
  for ( var i=0; i<pcexp.length; i++) {
    if (pcexp[i].test(postCode)) {
    
      // The post code is valid - split the post code into component parts
      pcexp[i].exec(postCode);
      
      // Copy it back into the original string, converting it to uppercase and
      // inserting a space between the inward and outward codes
      postCode = RegExp.$1.toUpperCase() + " " + RegExp.$3.toUpperCase();
      
      // If it is a BFPO c/o type postcode, tidy up the "c/o" part
      postCode = postCode.replace (/C\/O\s*/,"c/o ");
      
      // Load new postcode back into the form element
      valid = true;
      
      // Remember that we have found that the code is valid and break from loop
      break;
    }
  }
  
  // Return with either the reformatted valid postcode or the original invalid 
  // postcode
  if (valid) {return postCode;} else return false;
}