Using array variable in 2 windows

[balltom]

Hello folks,
I am definitively learning all this, so be nice with me
:(

I have a main window where I manipulate an Array.
I would like to be able to change some values of this array using a Popup window called from my main window (with check boxes in it).

I tried to declare my array as global in the main window:

<script>
var list = New Array
list[list.lenght] = New Array("Apple", "Red", 4)
list[list.lenght] = New Array("Grappes", "Green", 30)
etc.

</script>


And I want to use and modifiate this array in my pop up:

<script>
...
list[1][2] = 6
...

</script>

But I don't know if I can use the same variable name or if I need to declare it again... :confused:
So far I got "list is null" or other kind of crap...


Be nice with me, tell me how to do it.
Thanks in advance.

Tom

[CRASH_OVERRIDE]

you spelled 'length' wrong as 'lenght' ;)
I dont know the exact procedure, but you can probably access it by something using the 'parent' or 'opener' property.

[balltom]

Thanks Crash. Quick response!

In fact I misspelt when I copied the code in the message.
In my original code, it is spelt right.

I figured the opener or parent property might work. But when I am using them, I got a "variable not defined" error.

How should I use them?
Any tutorial somewhere or your help?

should I just use parent.list[x][y] or opener.list[x][y].
Or any declaration to make before?

Thanks a lot!

[CRASH_OVERRIDE]

Did you make sure that the parent property was called from the window object? Then it might work the way you say, like window.parent.list[x][y], but I cant guarentee anything as I have never attempted anything like this.
Can I get an expert please?

An alternative would be to use ASP and querystrings instead, but I dont know if those can handle arrays...

[balltom]

Doesn't work either. :(
Here is my parent page:

<script language=JavaScript>
list=new Array()
list[list.length]=new Array("/music/1999.mid","1999", 1)
list[list.length]=new Array("/music/50s_60s.mid","50s_60s", 1)
list[list.length]=new Array("/music/ABBA - Dancinqueen.mid","ABBA - Dancinqueen", 1)
list[list.length]=new Array("/music/addictedtolove.mid","addictedtolove", 1)
list[list.length]=new Array("/music/aladdin.mid","aladdin", 1)
</script>

<script>
...
other functions using this array and that work...
...

</script>

here is the script in the popup
<SCRIPT language=JavaScript>

function check_out(form_, name) {
var box, e = 0, grp = form_[name]
while (box = grp[e++]) {
if (eval(box.checked)==true){
parent.list[e-1][2]=1
}
else {
parent.list[e-1][2]=0
}
}
window.close()
}
</script>

when I use the function check_out()
I got the following error message: "parent.list is null or not an object"

:confused: :confused: :confused:

[CRASH_OVERRIDE]

That's because list isnt an object- you would need a collection or a method to draw the array data from the parent window.

[glenngv]

use:

opener.list[e-1][2] = 1;

just make sure the index of the array is not out of bounds.
you might want to check first if the opener window is closed or not before setting the array:

if (opener && !opener.closed) opener.list[e-1][2] = 1;

[CRASH_OVERRIDE]

All right people, stop making me feel brain dead. :D

[balltom]

Awesome... it works.:thumbsup:

But Crash you don't have to feel bad. You suggested 'opener' or 'parent'. I just picked the wrong one.:o

You guys are so great!
Thanks a bunch.
Tom