using onchange and php

[lucilue2003]

I have a php page and based on what the user clicks, i show them something different all on the same page.

something like this:
<a href=\"test.php?catid=$catid&subid=Business_media/Cable-industry-news\" >Cable industry</a> <br>

<form name="NumberAmount" method="post" action="test.php">

<select name="Number" onchange="window.location=('test.php?Number='+this.options[this.selectedIndex].value)">

My problem is that when they choose from the dropdown, i loose all the other information in my header.... Is there a way to keep all that info and pass this along too ?

THanks.

[AstroTeg]

You have to write some JavaScript to include all that other form info (if that's what you're referring to "header"). The browser will not automatically collect it for you.

[gvanaco]

do you have an example of how you do it.
with a cookie?

[lucilue2003]

Here is what i have:
<?php
$catid = $GET['catid'];
$subid = $GET['subid'];
$Number = $_GET['Number'];
if (!$Number)
$Number=5;
?>

index.php :
<a href="test.php?catid=Business: general">Business: general</a>
<a href="test.php?catid=Business: media">Business: media</a><a href="test.php?catid=Companies">Companies</a>

index.php?catid=Business: general
if ($catid != null ) //url: test.php?catid=x&suib=x
{
if ($catid == "Business: general" && $subid == 0)
{
echo "<a href=\"test.php?catid=$catid&subid=Business_general/Entrepreneur-news\" > Entrepreneur";
}
...
}

so now the header shows the following:
http://www.somesite.com/test.php?catid=Business: general

and if someone did the following
<select name="Number" onchange="window.location=('test.php?Number='+this.options[this.selectedIndex].value)">

than my new header would only show:
http://www.somesite.com/test.php?Number=X

I want is this:
http://www.somesite.com/test.php?catid=Business: general&Number=X

so how exactly can i do this ?
javascript how so ? can you point me in the right direction ?
thanks

[gvanaco]

When I try to do a similar thing, all my value's of the other fields are gone (textboxes and textields)

How can I keep these value's by refreshing of the page?

[yousaf931]

You can over come this problem by storing those in session variables that fetch record from database.

U lost ur variable values thats why fileds gone blank.

Cheers,
yousaf FAYYAZ.

[dave420]

Don't jump to using sessions just because you need persistent data - code your own methods. Sessions are a cop-out 😉

[Weedpacket]

Originally posted by dave420
Don't jump to using sessions just because you need persistent data - code your own methods. Sessions are a cop-out 😉

Exactly: create your own session-handling system. It's bound to be better.

[lucilue2003]

is there a place where i can go to, inorder to learn this.
thanks.

[Weedpacket]

You might as well use [man]session[/man]s. This is what they're there for.
Seel also this first post, and my reply further down.