// ----------------------------------------------------------------------
// Javascript form validation routines.
// ----------------------------------------------------------------------

var nbsp = 160;		// non-breaking space char
var node_text = 3;	// DOM text node-type
var emptyString = /^\s*$/ ;
var global_valfield;	// retain valfield for timer thread

// --------------------------------------------
//                  trim
// Trim leading/trailing whitespace off string
// --------------------------------------------

function trim(str)
{
  return str.replace(/^\s+|\s+$/g, '');
}


// --------------------------------------------
//                  setfocus
// Delayed focus setting to get around IE bug
// --------------------------------------------

function setFocusDelayed()
{
  global_valfield.focus();
}

function setfocus(valfield)
{
  // save valfield in global variable so value retained when routine exits
  global_valfield = valfield;
  setTimeout( 'setFocusDelayed()', 100 );
}


// --------------------------------------------
//                  msg
// Display warn/error message in HTML element.
// commonCheck routine must have previously been called
// --------------------------------------------

function msg(fld,     // id of element to display message in
             msgtype, // class to give element ("warn" or "error")
             message) // string to display
{
  // setting an empty string can give problems if later set to a 
  // non-empty string, so ensure a space present. (For Mozilla and Opera one could 
  // simply use a space, but IE demands something more, like a non-breaking space.)
  var dispmessage;
  if (emptyString.test(message)) 
    dispmessage = String.fromCharCode(nbsp);    
  else  
    dispmessage = message;

  var elem = document.getElementById(fld);
  elem.firstChild.nodeValue = dispmessage;  
  
  elem.className = msgtype;   // set the CSS class to adjust appearance of message
}

// --------------------------------------------
//            commonCheck
// Common code for all validation routines to:
// (a) check for older / less-equipped browsers
// (b) check if empty fields are required
// Returns true (validation passed), 
//         false (validation failed) or 
//         proceed (don't know yet)
// --------------------------------------------

var proceed = 2;  

function commonCheck    (valfield,   // element to be validated
                         infofield,  // id of element to receive info/error msg
                         required)   // true if required
{
  if (!document.getElementById) 
    return true;  // not available on this browser - leave validation to the server
  var elem = document.getElementById(infofield);
  if (!elem.firstChild) return true;  // not available on this browser 
  //if (elem.firstChild.nodeType != node_text) return true;  // infofield is wrong type of node  

  if (emptyString.test(valfield.value)) {
    if (required) {
      msg (infofield, "error", "required");  
      setfocus(valfield);
      return false;
    }
    else {
      msg (infofield, "warn", "");   // OK
      return true;  
    }
  }
  return proceed;
}

// --------------------------------------------
//            validatePresent
// Validate if something has been entered
// Returns true if so 
// --------------------------------------------

function validatePresent(valfield,   // element to be validated
                         infofield ) // id of element to receive info/error msg
{
var stat = commonCheck (valfield, infofield, true);
  if (stat != proceed) return stat;

  msg (infofield, "warn", "");  
  return true;
}

// --------------------------------------------
//               validateEmail
// Validate if e-mail address
// Returns true if so (and also if could not be executed because of old browser)
// --------------------------------------------

function validateEmail  (valfield,   // element to be validated
                         infofield,  // id of element to receive info/error msg
                         required)   // true if required
{
  var stat = commonCheck (valfield, infofield, required);
  if (stat != proceed) return stat;

  var tfld = trim(valfield.value);  // value of field with whitespace trimmed off
  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/  ;
  if (!email.test(tfld)) {
    msg (infofield, "error", "ERROR: not a valid e-mail address");
    setfocus(valfield);
    return false;
  }

  var email2 = /^[A-Za-z][\w.-]+@\w[\w.-]+\.[\w.-]*[A-Za-z][A-Za-z]$/  ;
  if (!email2.test(tfld)) 
    msg (infofield, "warn", "Unusual e-mail address - check if correct");
  else
    msg (infofield, "warn", "");
  return true;
}


function validatebrochure() {
    var elem;
    var errs=0;
    // execute all element validations in reverse order, so focus gets
    // set to the first one in error.
    if (!validatePresent(document.forms.brochure.ContactName, 'inf_ContactName', true)) errs += 1; 
    if (!validatePresent(document.forms.brochure.BusinessName, 'inf_BusinessName', true)) errs += 1; 
    if (!validatePresent(document.forms.brochure.Email, 'inf_Email', true)) errs += 1; 
    if (!validatePresent(document.forms.brochure.PostCode, 'inf_PostCode', true)) errs += 1; 
    if (!validatePresent(document.forms.brochure.PostalAddress1, 'inf_PostalAddress1', true)) errs += 1; 
    if (!validatePresent(document.forms.brochure.PostalAddress2, 'inf_PostalAddress2', true)) errs += 1; 
    if (!validatePresent(document.forms.brochure.State, 'inf_State', true)) errs += 1; 
    if (!validatePresent(document.forms.brochure.PostalAddress2, 'inf_PostalAddress2', true)) errs += 1; 

    if (errs>1)  alert('There are fields which need correction before sending');
    if (errs==1) alert('There is a field which needs correction before sending');

    return (errs==0);


}


function validatebrokerform() {
    var elem;
    var errs=0;

    // execute all element validations in reverse order, so focus gets
    // set to the first one in error.
    if (!validatePresent(document.forms.EnrolmentForm.FirstName, 'inf_FirstName', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.Surname, 'inf_Surname', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.DOB, 'inf_DOB', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.Gender, 'inf_Gender', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.BusinessAddress1, 'inf_BusinessAddress1', true)) errs += 1; 
    if (!validatePresent(document.forms.EnrolmentForm.BusinessAddress2, 'inf_BusinessAddress2', true)) errs += 1; 
    if (!validatePresent(document.forms.EnrolmentForm.BusinessState, 'inf_BusinessState', true)) errs += 1; 
    if (!validatePresent(document.forms.EnrolmentForm.BusinessPostcode, 'inf_BusinessPostCode', true)) errs += 1; 
    if (!validatePresent(document.forms.EnrolmentForm.ContactPhone, 'inf_ContactPhone', true)) errs += 1;    
    if (!validatePresent(document.forms.EnrolmentForm.ContactEmail, 'inf_ContactEmail', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.isAnAggregatorOrFranchiseeYesNo, 'inf_aggregator', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.BusinessRelationship, 'inf_relationship', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.BusinessStructure, 'inf_structure', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.EntityName, 'inf_EntityName', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.ABN, 'inf_ABN', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.isRegisteredForGST, 'inf_isGST', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.AuthorisedSignatoryName, 'inf_AuthorisedSignatoryName', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.AuthorisedSignatoryPosition, 'inf_AuthorisedSignatoryPosition', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.isSubjectToASICInvestigation, 'inf_isSubjectToASICInvestigation', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.isBankruptOrInsolvent, 'inf_isBankruptOrInsolvent', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.hasCriminalOffences, 'inf_hasCriminalOffences', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.areLegalProceedings, 'inf_areLegalProceedings', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.hasDisputes, 'inf_isBusinessBankruptInsolvent', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.hasFinalDeclaration, 'inf_hasFinalDeclaration', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.hasRPLQualifications, 'inf_hasRPLQualifications', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.isBusAFSL, 'inf_isBusAFSL', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.isAuthorisedAFSL, 'inf_isAuthorisedAFSL', true)) errs += 1;
    if (!validatePresent(document.forms.EnrolmentForm.HowHeardAbout, 'inf_HowHeardAbout', true)) errs += 1;

    if (errs>1)  alert('There are fields which need correction before sending');
    if (errs==1) alert('There is a field which needs correction before sending');

    return (errs==0);


}