drop-down menu validation

crmpicco · July 20th, 2005, 06:39 AM

I have a problem with the following code. I run a onChange when the drop-down is change. Basically,
it is validation to check for the date of births for a child.

The appropriate alert is shown as to what condition is met (this is not a problem).

But if the user does not change the DOB THEN clicks the 'CONFIRM' button, it passes to the next
page without re-checking the DOB drop-downs.

Heres my code:

ASP/HTML:

Code:

<select name="chddate<%=j%>"
onChange="document.form.chdbirthday<%=j%>.value=document.form.chddate<%=j%>.options[document.form.chddate<%=j%>.selectedIndex].value+document.form.chdmonth<%=j%>.options[document.form.chdmonth<%=j%>.selectedIndex].value+document.form.chdyear<%=j%>.options[document.form.chdyear<%=j%>.selectedIndex].value;
javascript: checkChdBirthday(document.form.chdbirthday<%=j%>); chdinf(); confirm(); confirmedok();"
style="color: black; font: 7pt Verdana, Arial, Helvetica, sans-serif;"> 
        <%
        Response.write "<option> --- </option>"
For d = 1 to 31
    if len(d) = 1 then
        Response.Write "<option value=0"& d & ">" & d & "</option>"
    else
        Response.write "<option value=" & d & ">" & d & "</option>"
    end if
Next
%> 
</select> 
<select name="chdmonth<%=j%>"
onChange="document.form.chdbirthday<%=j%>.value=document.form.chddate<%=j%>.options[document.form.chddate<%=j%>.selectedIndex].value+document.form.chdmonth<%=j%>.options[document.form.chdmonth<%=j%>.selectedIndex].value+document.form.chdyear<%=j%>.options[document.form.chdyear<%=j%>.selectedIndex].value;
javascript: checkChdBirthday(document.form.chdbirthday<%=j%>); chdinf(); confirm(); confirmedok();"
style="color: black; font: 7pt Verdana, Arial, Helvetica, sans-serif;" > 
      <%
    Response.write "<option> --- </option>"
For m = 1 to 12
    if len(m) = 1 then
        Response.write "<option value=0"& m & ">" & MMtoMMM(m) & "</option>"
    else
        Response.Write "<option value=" & m & ">" & MMtoMMM(m) & "</option>"
    end if
Next
%> 
      </select> 
      <% 
Dim vor_15_jahren 
vor_15_jahren = year(date) - 15
%> 
<select name="chdyear<%=j%>"
onChange="document.form.chdbirthday<%=j%>.value=document.form.chddate<%=j%>.options[document.form.chddate<%=j%>.selectedIndex].value+document.form.chdmonth<%=j%>.options[document.form.chdmonth<%=j%>.selectedIndex].value+document.form.chdyear<%=j%>.options[document.form.chdyear<%=j%>.selectedIndex].value;
javascript: checkChdBirthday(document.form.chdbirthday<%=j%>); chdinf(); confirm(); confirmedok();"
style="color: black; font: 7pt Verdana, Arial, Helvetica, sans-serif;">
<%
    Response.write "<option> --- </option>"
For y = vor_15_jahren to year(date) -2
    Response.Write "<option value=" & y & ">" & y & "</option>"
Next
%> 
                </select> 

                <input type="hidden" name="chdbirthday<%=j%>" size="5" style="font:7pt;" maxLength="10">

JavaScript:

[code]
<script language="javascript">
// Last Edit: CRM_14jul05
/////////////////////////////////////////////
// DESCRIPTION: //
// JAVASCRIPT VALIDATION FOR THE DROP DOWN //
// DATE OF BIRTH MENUS FOR CHILD AND INF //
/////////////////////////////////////////////
// Max CHD: 8 (EIGHT) (1 ADT & 8 CHD) //
// Max INF: 4 (FOUR) (4 ADT & 4 INF) //
/////////////////////////////////////////////
function refresh()
{
    window.location.reload(false);
}

// Function to change any text to Proper Case (e.g. picco -> Picco)
String.prototype.toProperCase = function()
{
    return this.charAt(0).toUpperCase() + this.substring(1,this.length).toLowerCase();
}

// Set inital counter values to zero
chdcounter = 0;
infcounter = 0;
under12counter = 0;
under2counter = 0;
number=0;
kostenzahler=0;

// Set inital values to false/true
child=false;
infant=false;
chdredirect=false;
infredirect=false;
infalerted=false;
bad_date=false;
submit_form=false;
check_chd_invalid_chars=false;
check_inf_invalid_chars=false;
do_not_alert=false;
do_not_check_full_dob=false;
check_full_dob=false;
CHD_do_not_check_full_dob=false;
CHD_check_full_dob=false;
chd_invdate="false";
inf_invdate="false";

// Set inital values to yes/no
confirm_redirect="no";
img_unclicked="no";

// declare variables
var inf_age;
var duplikat_chd;
var chdalerted;
var gehen_Sie;
var empty_field;

function confirm()
{
    //alert("function - confirm");
    img_unclicked="true"; // set variable to state that the 'CONFIRM' image has NOT been clicked
    //alert("img_unclicked = " + img_unclicked);
}

function confirm_img()
{
    //alert("function - confirm_img");
    img_unclicked="false";
    gehen_Sie=true;
}
///////////////////////////////////////
// Date of Birth Validation //
// Check if Infant < 2 Jahre Alt //
// Check if Child < 12 Jahre Alt //
///////////////////////////////////////

Date.prototype.getDiff = function(date, interval){
  if (typeof date == "string"){
     date = new Date(date);
  }
  if (isNaN(date) || !(date instanceof Date)){
     return NaN;
  }
  if (typeof interval == "undefined") interval = "ms";
  var diff = this - date;
  switch(interval.toLowerCase()){
    case "s":
        diff = diff/1000; break;
    case "n":
        diff = diff/(1000*60); break;
       case "h":
        diff = diff/(1000*60*60); break;
       case "d":
        diff = diff/(1000*60*60*24); break;
    case "m":
        diff = diff/(1000*60*60*24*30); break;
    case "y":
        diff = diff/(1000*60*60*24*365); break;
    default:
      ;
  }
  return Math.floor(diff);
}

///////////////////////////////////////
// CHILD Birthday Checker //
///////////////////////////////////////
// DESCRIPTION: //
// CHECK IF THE DECLARED CHILD DOB //
// IS LESS THAN 12 YEARS OLD //
///////////////////////////////////////
function checkChdBirthday(obj)
    {
    alert("function = checkChdBirthday");
    alert("chdbirthday value = " + obj.value);

    var today_date = new Date();
    var today_d = today_date.getDate();
    var today_day = (today_d < 10) ? '0' + today_d : today_d;
    var today_m = today_date.getMonth() + 1;
    var today_month = (today_m < 10) ? '0' + today_m : today_m;
    var today_yy = today_date.getYear();
    var today_year = (today_yy < 1000) ? today_yy + 1900 : today_yy;
    var today;
    today = today_year + today_month + today_day
    alert("today = " + today);

    objvalue_yyyy = obj.value.slice(4,8) // YYYY (2004)
    objvalue_mm = obj.value.slice(2,4) // MM (02)
    objvalue_dd = obj.value.slice(0,2) // DD (27)

    var objvalue;
    objvalue=objvalue_yyyy+objvalue_mm+objvalue_dd;
    alert("objvalue = " + objvalue);

    the_difference = today - objvalue

    if(the_difference > 120000)
    {
            add=add+1;
            alert("You have entered an incorrect Date of Birth for the Children\nChild must be aged 2-12 years old");
    }
    else
    {

    }
    //alert("CHD_CheckIT! = " + chd_checkit);
    //alert("chdalerted = " + chdalerted);

    if(chd_checkit==true)
    {
        nochd = document.form.nochd.value

        for(x=1;x<nochd;x++)
        {

            chd_length = eval("document.form.chdbirthday"+x+".value.length" )

            if((Math.ceil(chd_length)<8)&&(Math.round(chd_leng th)!=0))
            {
                CHD_do_not_check_full_dob=true; // CHD DOB has INCORRECT value (not DDMMYYYY)
            }
            if(Math.ceil(chd_length)==8)
            {
                CHD_do_not_check_full_dob=false; // CHD DOB is in correct format
            }

        }

    }

    //alert("CHD_do_not_check_full_dob = " + CHD_do_not_check_full_dob);
    if(CHD_do_not_check_full_dob==false) // if the length of the 'chdbirthday' field is 8 ('DDMMYYYY')
    {

    //alert("249");
    df = document.form;
    retdate = df.retdt.value; // Return Date of Journey in YYYYMMDD format
    if(document.form.nochd.value==1)
    {
        nochdvalue=document.form.nochd.value
    }
    else
    {
        nochdvalue=document.form.nochd.value-1
    }

    //alert("!LINE 261!");
    for (i=0; i<nochdvalue; i++) // loop through the number of children
    {
    nochdvalue=0;
    number=number+1;
    if( !/^(\d{1,2})(\d{1,2})(\d{4})$/.test(obj.value) )
    {
        if((do_not_alert!=true)&&(obj.value.length>=8))
        {
            alert( "Invalid date supplied - must be format DDMMYYYY" );
            //alert("obj.value = " + obj.value);
            chd_invdate="true";
            do_not_alert=true;
        }
        document.form.chddate1.focus();
        return;
    }
    else
    {
        chd_invdate="false";
    }

    //alert("282");
    // pass Infant DOB to check_date to check for invalid dates
    // e.g. 30022002
    check_chd_invalid_chars=true;

    check_date(obj);

    var date = new Date();
    var d = date.getDate();
    var day = (d < 10) ? '0' + d : d;
    var m = date.getMonth() + 1;
    var month = (m < 10) ? '0' + m : m;
    var yy = date.getYear();
    var year = (yy < 1000) ? yy + 1900 : yy;

    todayyyyymmdd = year + month + day // todays date in YYYYMMDD format

    yyyy = obj.value.slice(4,8) // YYYY (2004)
    mm = obj.value.slice(2,4) // MM (02)
    dd = obj.value.slice(0,2) // DD (27)

    dob = yyyy + mm + dd
    unterschied = todayyyyymmdd - dob

    nochd = document.form.nochd.value
    noinf = document.form.noinf.value

    //alert("bad_date = " + bad_date);
    if(bad_date!=true)
    {
        //alert("unterschied = " + unterschied);
        if(unterschied > 120000 ) // if the difference is more than 120,000 then NOT A CHILD
        {
            chd_invdate="false";
            bad_date=false;
            child = false;
            submit_form=false;
            chdcounter = chdcounter + 1; // amount of declared children that are found to be over 12
            childno = i+1
            kostenzahler=kostenzahler+1;
            alert("kostenzahler = " + kostenzahler);

            forename = document.form.cfname1.value
            surname = document.form.clname1.value

            if(chdcounter==2)
            {
                if(document.form.cfname2.value!="")
                {
                    forename2 = document.form.cfname2.value
                    surname2 = document.form.clname2.value
                }
            }

            if(chdcounter==3)
            {
                if(document.form.cfname3.value!="")
                {
                    forename3 = document.form.cfname3.value
                    surname3 = document.form.clname3.value
                }
            }

        }
        else if(unterschied < 120000) // if the difference is less than 120,000 then IS A CHILD
        {
            chd_invdate="false";
            bad_date=false;
            child=true;
            submit_form=true;
            chdcounter=0;
            under12counter = under12counter + 1;
            passtocheckRetDate = obj.value;
            checkRetDate(document.form.retdt);
        }
    }

    var d = new Date();
    var d2 = new Date(RegExp.$3, RegExp.$2, RegExp.$1);

    var diff = d.getDiff(d2, "y")
    if( isNaN(diff) )
    {
        alert( "Invalid date supplied" );
    }
    }
    inf_ok=false;

    }

    } // end of main if

////////////////////////////////////////
// VALIDATE DATE OF BIRTH FIELD //
////////////////////////////////////////
// DESCRIPTION: //
// CHECK THE DATE OF BIRTH FIELD FOR //
// INVALID DATES E.G. 30-FEBRUARY-2001//
////////////////////////////////////////
function check_date(field){
var checkstr = "0123456789";
var DateField = field;
var Datevalue = "";
var DateTemp = "";
var seperator = ".";
var day;
var month;
var year;
var leap = 0;
var err = 0;
var i;
   err = 0;
   DateValue = DateField.value;
   /* Delete all chars except 0..9 */
   for (i = 0; i < DateValue.length; i++)
   {
      if (checkstr.indexOf(DateValue.substr(i,1)) >= 0)
      {
         DateTemp = DateTemp + DateValue.substr(i,1);
      }
   }
   bad_date=false;
   DateValue = DateTemp;
   /* Always change date to 8 digits - string*/
   /* if year is entered as 2-digit / always assume 20xx */
   if (DateValue.length == 6) {
      DateValue = DateValue.substr(0,4) + '20' + DateValue.substr(4,2); }
   if (DateValue.length != 8) {
      err = 19;}
   /* year is wrong if year = 0000 */
   year = DateValue.substr(4,4);
   if (year == 0) {
      err = 20;
   }
   /* Validation of month*/
   month = DateValue.substr(2,2);
   if ((month < 1) || (month > 12)) {
      err = 21;
   }
   /* Validation of day*/
   day = DateValue.substr(0,2);
   if (day < 1) {
     err = 22;
   }
   /* Validation leap-year / february / day */
   if ((year % 4 == 0) || (year % 100 == 0) || (year % 400 == 0)) {
      leap = 1;
   }
   if ((month == 2) && (leap == 1) && (day > 29)) {
      err = 23;
   }
   if ((month == 2) && (leap != 1) && (day > 28)) {
      err = 24;
   }
   /* Validation of other months */
   if ((day > 31) && ((month == "01") || (month == "03") || (month == "05") || (month == "07") || (month == "08") || (month == "10") || (month == "12"))) {
      err = 25;
   }
   if ((day > 30) && ((month == "04") || (month == "06") || (month == "09") || (month == "11"))) {
      err = 26;
   }
   /* if 00 ist entered, no error, deleting the entry */
   if ((day == 0) && (month == 0) && (year == 00)) {
      err = 0; day = ""; month = ""; year = ""; seperator = "";
   }
   /* if no error, write the completed date to Input-Field (e.g. 13.12.2001) */
   if (err == 0) {
      DateField.value = day + month + year;
   }
   /* Error-message if err != 0 */
   else
   {
      bad_date=true;
      if((chd_invdate!="true")&&(inf_invdate!="true"))
      {
          alert("The Date you have entered is invalid\nPlease Re-enter");
        infcounter=0;
        chdcounter=0;
      }
      if(check_chd_invalid_chars==true)
      {
          document.form.chddate1.focus();
      }
      else if(check_inf_invalid_chars==true)
      {
        document.form.date1.focus();
      }
      submit_form=false;
   }
}

/////////////////////////////////////////////////
// CHD: CHECK THE RETURN DATE OF THE JOURNEY //
// AGAINST THE DATE OF BIRTH OF THE PASSENGER //
/////////////////////////////////////////////////
// DESCRIPTION: //
// TO DETERMINE IF THE PASSENGER CHANGES AGE //
// DURING THE JOURNEY //
/////////////////////////////////////////////////
function checkRetDate(obj)
    {
        //alert("function = checkRetDate");
        yyyy = passtocheckRetDate.slice(4,8) // YYYY (2004)
        mm = passtocheckRetDate.slice(2,4) // MM (02)
        dd = passtocheckRetDate.slice(0,2) // DD (27)

        yyyymmdd = yyyy + mm + dd; // YYYYMMDD (20040227)

        retdtminusdob = eval(obj.value-yyyymmdd) // difference between the return date and the INF date of birth

        if(nochd!=0)
        {
            if(retdtminusdob > 120000) // 120,071 // 120,000
            {
                alert("A Child will turn 12 during this journey\nThis passenger must be classed as an Adult and not a Child");
                document.form.chddate1.focus();
                chdredirect=true;
                submit_form=false;
            }
        }
    }

// WHEN THERE IS JUST AN ADULT TRAVELLING
function adt()
{
    adult = "yes"
}

function chdinf()
{
    //alert("function chdinf");
    adult = "no"
}
/////////////////////////////////////////////
// SUBMIT THE FORM //
/////////////////////////////////////////////
// DESCRIPTION: //
// DECIDE WHETHER TO PERFORM EXTRA FORM //
// FIELD CHECKS OR TO FLAG AN ALERT AS TO //
// WHAT CHD/INF HAS INCORRECT DOB ENTERED //
/////////////////////////////////////////////

function confirmedok()
{
    //alert("function CONFIRMEDOK");
    //alert("adult = " + adult);
    //alert("chd_count = " + chd_count);
    //alert("EMPTY FIELD = " + empty_field);
    //alert("submit_form = " + submit_form);

    if((gehen_Sie==true)&&(empty_field!=true)&&(chd_co unt==0)&&(inf_count==0))
    {
        check(document.form);
    }

    if(adult=="yes")
    {
        document.form.TK.value=document.form.TK.value;

        if((img_unclicked!="yes")&&(empty_field!=true)&&(c hd_count==0)&&(inf_count==0))
        {
            //alert("Check the form fields");
            check(document.form);
        }
    }

    if(adult!="yes")
    {
    //alert("ADULT = NO");
    //alert("chdcounter = " + chdcounter);
    //alert("infcounter = " + infcounter);
    //alert("chdredirect = " + chdredirect);
    //alert("infredirect = " + infredirect);
    //alert("bad_date = " + bad_date);
    // if there are no incorrectly entered DOBs then
    // proceed with additional validation on form fields
    if ((chdcounter==0)&&(infcounter==0)&&(chdredirect!=t rue)&&(infredirect!=true)&&(bad_date!=true))
    {
        //alert("submit_form = " + submit_form);

        // Proceed to perform additional checks on the form fields
        // no DATE OF BIRTH alerts will be shown
        if (submit_form==true)
        {
            //alert("inf_invdate = " + inf_invdate);
            //alert("chd_invdate = " + chd_invdate);
            //alert("empty_field = " + empty_field);
            //alert("chd_count = " + chd_count);
            //alert("inf_count = " + inf_count);

            if((inf_invdate!="true")&&(chd_invdate!="true")&&( empty_field!=true)&&(chd_count==0)&&(inf_count==0) )
            {
                document.form.TK.value=document.form.TK.value;
                check(document.form);
            }
        }
        else
        {
            nochd = document.form.nochd.value
            noinf = document.form.noinf.value
            if(nochd!=0)
            {
                if(child==false)
                {
                    do_not_submit_form=true;
                }
            }

            if(noinf!=0)
            {
                if(infant==false)
                {
                    do_not_submit_form=true;
                }
            }
        }

    }
    else if(bad_date!=true)
    {
        df = document.form
        nochd = df.nochd.value
        noinf = df.noinf.value

        ttlchd = nochd
        ttlinf = noinf

        allinfants=false;
        allkinder=false;
        allinfchd=false;

///////////////////////////////
// ALERT WARNINGS TO USER //
///////////////////////////////
// ALERT WHICH DOB IS //
// INVALID THEN REDIRECT TO //
// AIRBOOK FLIGHT SEARCH //
///////////////////////////////

//alert("INSIDE the ALERTS");
//alert("chdalerted = " + chdalerted);
//alert("duplikat_chd " + duplikat_chd);
//alert("INCORRECT chdcounter = " + chdcounter);
//alert("INCORRECT infcounter = " + infcounter);

        // IF THE CHILD & INFANT ARE BOTH TURNING 12 AND 2 THEN REDIRECT TO AIRBOOK TO DECLARE CHILD AS ADULT AND INFANT AS CHILD
        if((chdredirect==true)&&(infredirect==true))
        {
            confirm_redirect="yes";
        }

        // IF THE CHILD IS GOING TO TURN 12 DURING THE JOURNEY THEN REDIRECT TO AIRBOOK TO DECLARE CHILD AS ADULT
        if((chdredirect==true)&&(infredirect!=true))
        {
            confirm_redirect="yes";
        }

        // IF THE INFANT IS GOING TO TURN 2 DURING THE JOURNEY THEN REDIRECT TO AIRBOOK TO DELCARE INFANT AS CHILD
        if((infredirect==true)&&(chdredirect!=true))
        {
            confirm_redirect="yes";
        }

        // IF ALL THE INFANTS AND ALL THE CHILDREN HAVE INCORRECTLY ENTERED DOB
        if((Math.abs(infcounter)==Math.abs(ttlinf))&&(Math .abs(chdcounter)==Math.abs(ttlchd))&&(Math.abs(ttl chd>1)&&Math.abs(ttlinf>1))) //(duplikat_chd!=true)
        {
            //alert("743");
            allinfchd=true;
            chdalerted=true;
            infalerted=true;
            if(parseInt(unterschied)>120000)
            {
                alert("You have entered an incorrect Date of Birth for ALL Children\nA Child is classed as being aged between 2-12 (not inc.)\n\n" +
                "You have entered an incorrect Date of Birth for ALL Infants\nA Infant is classed as being aged between 0-2 (not inc.)");
            }
            else if(parseInt(unterschied)<120000)
            {
                chdcounter=0;
                submit_form=true;
            }
            all=true;
        }
        else
        {
            all=false;
            allinfchd=false;
        }

        // IF ALL THE CHILDREN HAVE INCORRECTLY ENTERED DOB
        if(Math.ceil(chdcounter)==Math.ceil(ttlchd)&&(Math .ceil(ttlchd!=0))&&(Math.ceil(ttlchd!=1))) //&&(duplikat_chd!=true)
        {
            if(allinfchd!=true)
            {
                allkinder=true;
                if(Math.floor(unterschied)>120000)
                {
                    alert("You have entered an incorrect Date of Birth for ALL Children\n"+
                          "A Child is classed as being aged between 2-12 (not inc.)");
                }
                else if(Math.abs(unterschied)<120000)
                {
                    chdcounter=0;
                    submit_form=true;
                }
                document.form.chddate1.focus();
                //alert("LINE number - 765");
                chdalerted=true;
                confirm_redirect="yes";
            }

        }
        else
        {
            allkinder=false;
        }

        // IF ALL THE INFANTS HAVE INCORRECTLY ENTERED DOB
        if((Math.abs(infcounter)==Math.abs(ttlinf))&&(Math .ceil(ttlinf!=0))&&(Math.ceil(ttlinf!=1)))
        {
            if(allinfchd!=true)
            {
                allinfants=true;
                if(Math.floor(inf_unterschied)>20000)
                {
                    alert("You have entered an incorrect Date of Birth for ALL Infants\n"+
                      "A Infant is classed as being aged between 0-2 (not inc.)");
                }
                else if(Math.floor(inf_unterschied)<20000)
                {
                    infcounter=0;
                    submit_form=true;
                }
                document.form.date1.focus();
                infalerted=true;
                confirm_redirect="yes";
            }
            else
            {
            infalerted=false;
            }
        }

        // BOTH: IF THERE ARE 1 OR MORE CHILDREN AND 1 OR MORE INFANTS WITH INCORRECT DOB
        if((Math.floor(chdcounter)!=0)&&(Math.floor(infcou nter)!=0))
        {
            alerted=false;
            chdpaxno = Math.floor(under12counter) + Math.floor(chdcounter);
            infpaxno = Math.floor(under2counter) + Math.floor(infcounter);
            if((chdcounter==1&&infcounter==1)&&(nochd==1&&noin f==1))
            {
                alert("You have entered an incorrect Date of Birth for\nChild: " + forename.toProperCase() + " " + surname.toProperCase() + "\n" +
                "Infant: " + inf_forename.toProperCase() + " " + inf_surname.toProperCase() + "\n" +
                "A Child is classed as being aged between 2-12 (not inc.)\nA Infant is classed as being aged between 0-2 (not inc.)");
                alerted=true;
                //alert("824");
                chdalerted=true;
                infalerted=true;
                chdcounter=0;
                infcounter=0;
                document.form.chddate1.focus();
                confirm_redirect="yes";
            }

            if((chdcounter==2&&infcounter==1)&&(nochd==2&&noin f==1))
            {

                alert("You have entered an incorrect Date of Birth for\nChild: " + forename.toProperCase() + " " + surname.toProperCase() + "\n" +
                "Child: " + forename2.toProperCase() + " " + surname2.toProperCase() + "\nInfant: " + inf_forename.toProperCase() + " " + inf_surname.toProperCase() + "\n" +
                "A Child is classed as being aged between 2-12 (not inc.)\nA Infant is classed as being aged between 0-2 (not inc.)");
                alerted=true;
                //alert("850");
                chdalerted=true;
                infalerted=true;
                chdcounter=0;
                infcounter=0;
                document.form.chddate1.focus();
                //var answer = confirm("You will be redirected to the Flight Search screen");
                //if(answer)
                //{
                    //window.location="airbook.asp";
                //}
                //else
                //{
                    //window.location="airbook.asp";
                //}
                confirm_redirect="yes";
            }

            if((chdcounter==1&&infcounter==2)&&(nochd==1&&noin f==2))
            {
                alert("You have entered an incorrect Date of Birth for\nChild: " + forename.toProperCase() + " " + surname.toProperCase() + "\n" +
                "Infant: " + inf_forename.toProperCase() + " " + inf_surname.toProperCase() + "\n"+
                "Infant: " + inf_forename2.toProperCase() + " " + inf_surname2.toProperCase() + "A Child is classed as being aged between 2-12 (not inc.)\n"+
                "A Infant is classed as being aged between 0-2 (not inc.)");
                alerted=true;
                //alert("876");
                chdalerted=true;
                infalerted=true;
                chdcounter=0;
                infcounter=0;
                document.form.chddate1.focus();
                confirm_redirect="yes";
            }

            // TWO WRONG CHD DOB, TWO WRONG INF DOB
            if((chdcounter==2&&infcounter==2)&&(nochd==2&&noin f==2))
            {

                alert("You have entered an incorrect Date of Birth for\nChild: " + forename.toProperCase() + " " + surname.toProperCase() + "\n" +
                "Child: " + forename2.toProperCase() + " " + surname2.toProperCase() + "\nInfant: " + inf_forename.toProperCase() + " " + inf_surname.toProperCase() + "\n" +
                "Infant: " + inf_forename2.toProperCase() + " " + inf_surname2.toProperCase() + "A Child is classed as being aged between 2-12 (not inc.)\n" +
                "A Infant is classed as being aged between 0-2 (not inc.)");
                alerted=true;
                //alert("903");
                chdalerted=true;
                infalerted=true;
                chdcounter=0;
                infcounter=0;
                document.form.chddate1.focus();
                //var answer = confirm("You will be redirected to the Flight Search screen");
                //if(answer)
                //{
                    //window.location="airbook.asp";
                //}
                //else
                //{
                    //window.location="airbook.asp";
                //}
                confirm_redirect="yes";
            }

            // ONE WRONG CHD DOB, ONE WRONG INF DOB
            if((chdcounter==1&&infcounter==1)&&(nochd==2&&noin f==2))
            {

                alert("You have entered an incorrect Date of Birth for a Child and an Infant\n"+
                "A Child is classed as being aged between 2-12 (not inc.)\nA Infant is classed as being aged between 0-2 (not inc.)");
                alerted=true;
                //alert("928");
                chdalerted=true;
                infalerted=true;
                chdcounter=0;
                infcounter=0;
                document.form.chddate1.focus();
                confirm_redirect="yes";
            }

            // IF THERE HAS BEEN NO ALERTS THEN SHOW GENERIC ALERT
            if(alerted!=true)
            {
                if((all!=true)&&(confirm_redirect!="yes"))
                {
                    alert("You have entered an incorrect Date of Birth for Children and Infants\n"+
                    "A Child is classed as being aged between 2-12 (not inc.)\nA Infant is classed as being aged between 0-2 (not inc.)")
                    document.form.chddate1.focus();
                    confirm_redirect="yes";
                }
            }
        }

        // CHD: IF THERE ARE 1 OR MORE CHILDREN WITH INCORRECT DOB AND NO INCORRECT INFANT DOB
        if((Math.floor(chdcounter)!=0)&&(Math.floor(infcou nter)==0)&&(nochd==1)) // &&(nochd<2)
        {
            if(allkinder!=true)
            {
                chdpaxno = Math.floor(under12counter) + Math.floor(chdcounter);
                alert("You have entered an incorrect Date of Birth for\nChild: "+ forename.toProperCase() + " " + surname.toProperCase() +
                "\nChild must be aged 2-12 years old");
                chdcounter=0;
                chdalerted=true;
                //alert("978");
                document.form.chddate1.focus();
                confirm_redirect="yes";
            }

        }

        // IF THERE ARE 1 OR MORE INCORRECTLY ENTERED CHD DOB, NO INFANTS INCORRECT DOB AND MORE THAN ONE CHILD IN THE BOOKING
        else if((Math.floor(chdcounter)!=0)&&(Math.floor(infcou nter)==0)&&(nochd!=1)&&(chdalerted!=true)) // &&(duplikat_chd!=true)
        {
            //alert("990!");
            chd_generic=true;
            //alert("i (control loop) = " + i);
            duplikat_chd=true;
            //alert("unterschied = " + unterschied);

            if(parseFloat(unterschied)>120000)
            {
          &