Javascript Popup Variables

mfacer

Bonjour!

I have searched the forums (and had a little success) - but have not found a solution to my problem...

I might be naive in not seeing this solution, but it is causing me hours of trauma! When it should be such a simple solution!!

Here is the scenario...

I have a page where a user clicks the button to open a popup window...this popup window contains a table of colours...when the user selects the color the window closes and the value they slected is returned to the relevant form text field... ok so far?

This all works ok.... I have two text fields..

..which when the popup window closes the value is returned to..

...the trouble is: I need to let the popup window know which text field to return the value to. I thought the best way of doing this was to have a form button which opens up the popup window.

The popup window URL is:
colourpopup.php and the variable is called "id"

so if the user wanted to populate the first colour text field, the popup window URL would be

colourpopup.php?id=1 and id=2 for the second.

My problem comes when I try to retrieve this variable within the popup window. I tried at first to simply output the result of the variable, but nothing happened. I used the following code:

<?php

echo "$id";

I thought that should have worked!! But it doesnt!

Can someone please help me!!
If you are unsure about anyhting, (and I'm sure you might be?!!!!) just ask!

Cheers ears...
Matt.

Anon

make sure register_globals is on, or that you use what is now called the "correct" way to identify the post variable (you'll excuse me, but I don't know what that is yet).

Anon

Try $_POST["id"]

Anon

This sounds more like a javascript problem. To access a form on the parent window (main) from a child window (popup), you need to use the opener object. So something like this might work:

opener.document.theForm.color1.value=SelectedColor1
opener.document.theForm.color2.value=SelectedColor2

This is what I would do for something like that.

timesUsed = 0;
function SelectColour(Colour)
{
if (timesUsed == 0)
{
opener.document.theForm.color1.value = Colour;
timesUsed++;
}
else
{
opener.document.theForm.color2.value = Colour;
window.close();
}
}

(I know, you shouldn't really use global variables like that, but this is only javascript we're talking about)

You can call SelectColour() from javascript hyperlinks, or other event handlers, such as a select box change.

You could confirm the colours before you closed the window, too.

Hope this helps.

mfacer

Hi, thanks for all the help on this one... I had a flick through the PHP.ini file looking for something else, and actually stumbled on the setting called:

register_globals = off

after reading the messages left here by you good people, I tried changing it to "on".

Surprise surprise, it works now.!

Thanks again to everyone!!

Matt F.