Hello everyone!

I am new to JavaScript and have been using PHP, but needed to use a dynamic form for information about County/State. Here is part of the code (keep in mind I did all 50 states this way-that's well over 3000 counties):

<script language="JavaScript" type="text/javascript">
<!--

//first combo box
data_1 = new Option("Alabama", "$");
data_2 = new Option("Alaska", "$$");
data_3 = new Option("Arizona", "$$$");

//second combo box
data_1_1 = new Option("Autauga", "-");
data_1_2 = new Option("Baldwin", "-");	
data_1_3 = new Option("Barbour", "-");
data_1_4 = new Option("Bibb", "-");
data_1_5 = new Option("Blount", "-");
data_1_6 = new Option("Bullock", "-");
data_1_7 = new Option("Butler", "-");
data_1_8 = new Option("Calhoun", "-");
data_1_9 = new Option("Chambers", "-");
data_1_10 = new Option("Cherokee", "-");
data_2_1 = new Option("Aleutians East", "--");
data_2_2 = new Option("Aleutians West", "--");
data_2_3 = new Option("Anchorage", "--");
data_2_4 = new Option("Bethel", "--");
data_2_5 = new Option("Bristol Bay", "--");
data_2_6 = new Option("Denali", "--");
data_2_7 = new Option("Dillingham", "--");
data_2_8 = new Option("Fairbanks North Star", "--");
data_2_9 = new Option("Haines", "--");
data_2_10 = new Option("Juneau", "--");
data_3_1 = new Option ("Apache", "--");
data_3_2 = new Option ("Cochise", "--");
data_3_3 = new Option ("Coconino", "--");	
data_3_4 = new Option ("Gila", "--");
data_3_5 = new Option ("Graham", "--");
data_3_6 = new Option ("Greenlee", "--");
data_3_7 = new Option ("La Paz", "--");
data_3_8 = new Option ("Maricopa", "--");
data_3_9 = new Option ("Mohave", "--");
data_3_10 = new Option ("Navajo", "--");

// other parameters
	
    displaywhenempty=""
    valuewhenempty=-1

    displaywhennotempty="-select-"
    valuewhennotempty=0


function change(currentbox) {
	numb = currentbox.id.split("_");
	currentbox = numb[1];

    i=parseInt(currentbox)+1

// I empty all combo boxes following the current one

    while ((eval("typeof(document.getElementById(\"combo_"+i+"\"))!='undefined'")) &&
           (document.getElementById("combo_"+i)!=null)) {
         son = document.getElementById("combo_"+i);
	     // I empty all options except the first one (it isn't allowed)
	     for (m=son.options.length-1;m>0;m--) son.options[m]=null;
	     // I reset the first option
	     son.options[0]=new Option(displaywhenempty,valuewhenempty)
	     i=i+1
    }


// now I create the string with the "base" name ("stringa"), ie. "data_1_0"
// to which I'll add _0,_1,_2,_3 etc to obtain the name of the combo box to fill

    stringa='data'
    i=0
    while ((eval("typeof(document.getElementById(\"combo_"+i+"\"))!='undefined'")) &&
           (document.getElementById("combo_"+i)!=null)) {
           eval("stringa=stringa+'_'+document.getElementById(\"combo_"+i+"\").selectedIndex")
           if (i==currentbox) break;
           i=i+1
    }


// filling the "son" combo (if exists)

    following=parseInt(currentbox)+1

    if ((eval("typeof(document.getElementById(\"combo_"+following+"\"))!='undefined'")) &&
       (document.getElementById("combo_"+following)!=null)) {
       son = document.getElementById("combo_"+following);
       stringa=stringa+"_"
       i=0
       while ((eval("typeof("+stringa+i+")!='undefined'")) || (i==0)) {

       // if there are no options, I empty the first option of the "son" combo
	   // otherwise I put "-select-" in it

	   	  if ((i==0) && eval("typeof("+stringa+"0)=='undefined'"))
	   	      if (eval("typeof("+stringa+"1)=='undefined'"))
	   	         eval("son.options[0]=new Option(displaywhenempty,valuewhenempty)")
	   	      else
	             eval("son.options[0]=new Option(displaywhennotempty,valuewhennotempty)")
	      else
              eval("son.options["+i+"]=new Option("+stringa+i+".text,"+stringa+i+".value)")
	      i=i+1
	   }
       //son.focus()
       i=1
       combostatus=''
       cstatus=stringa.split("_")
       while (cstatus[i]!=null) {
          combostatus=combostatus+cstatus[i]
          i=i+1
          }
       return combostatus;
    }
}

//-->
</script>

That works fine, except for one problem. I am trying to put this information in a SESSION using PHP, but it isn't working. Here is that portion of my form code:

<html>
<form action="statecounty.php" method="post">
<TR>
<TD>
<FONT style="FONT-SIZE: 11pt" face=Arial>
*State:
</FONT>
</TD>
<TD>
<select tabIndex="13" name="combo0" id="combo_0" onChange="change(this);" style="width:200px;">
<option value="value1">-select-</option>
<option value="value2">Alabama</option>
<option value="value3">Alaska</option>
<option value="value4">Arizona</option>
</select>
</TD>
<TR>
<TD>
<FONT style="FONT-SIZE: 11pt" face=Arial>
*County:
</FONT>
</TD>
<TD>
<select tabIndex="14" name="combo1" id="combo_1" onChange="change(this)" style="width:200px;">
	<option value="value1">  </option>
</select>
</TD>
</TR>
</form>
</html>

And this is located in the "statecounty.php" for that part:

<?php
session_start();

//Form validation:

if((!empty($_POST['combo1']))
&& (strlen($_POST['combo1']) < 30))
{
$county=$_POST['combo1'];
$county=htmlspecialchars($county);
$_SESSION['combo1'] = $county;
}
else
{
$errors[]= 'You forgot to enter a valid entry=County!';
}

if((!empty($_POST['combo0']))
&& (strlen($_POST['combo0']) < 30))
{
$state=$_POST['combo0'];
$state=htmlspecialchars($state);
$_SESSION['state'] = $state;
}
else
{
$errors[]= 'You forgot to enter your State!';
}

if (empty($errors))
{
header
("Location:http://www.thisnextpage.php");
exit();
}

if (!empty($errors) && is_array($errors))
{
echo '<h1>Error!</h1>
The following error(s) occured:<br/ >';
foreach ($errors as $msg)
{
echo " - $msg<br />\n";
}
}

?>

That part works just fine...and now the page that is supposed to pull the information:

<?php
session_start();

echo "{$_SESSION['combo1']}, {$_SESSION['combo0']}\n";

?>

Any ideas on what I'm doing wrong?
Thanks,
~Amy

It looks like you are not registering your session vars. The following works for me.

session_start();
session_register("SESSION_VAR1");
session_register("SESSION_VAR2");
$SESSION_VAR1 = $var1;
$SESSION_VAR2 = $var2;

Good luck,
cmc:)

I could be wrong, but I though this...

session_register("SESSION_VAR1");
$SESSION_VAR1 = $var1;

...was the same thing as this: $_SESSION[var1]=$var1; Using the 2nd one has worked on everything except the county and state. It will not show up as anything. I'm thinking it has to do with the Javascript. The Javascript code that is above is not my own, so I am not sure how to really decipher it to figure out why the Session is not working.

Can anyone help?
Thanks,
~Amy

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