Splitting an array and recombining with combo boxes

[databit]

OK I don't even know what to search for with this. I could probably do it with about 900 nested ifs but I'm betting there is a much more efficient way of doing it.

index varCode[index] varDescription[index]
0 10 cat_old_survived
1 20 cat_old_died
2 30 dog_young_playful
4 31 dog_old_dead
5 32 human_middleaged_alcoholic

Right now these are placed into 1 combo box with the following contents
10 cat_old_survived
20 cat_old_died
30 dog_young_playful
31 dog_old_dead
32 human_middleaged_alcoholic

What I need to do is create 3 context sensitive dropdown boxes
First box:
cat
dog
human

If user selects dog then second box has:
young
old

If they select old third box just has:
dead

Now for the fun part. After user has selected all 3 options it needs to associate it back to the corresponding code. In the above example:
Combo1 = dog
Combo2 = old
Combo3 = dead
would equal
varDescription = dog_old_dead
varCode = 31


Does this make any sense to anyone but me? If so any suggestions?

 

[BillyRayPreachersSon]

Have you checked out the FAQ section here?



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[databit]

At the time of writing this I hadn't because I had no idea what to look for. It's apparently called Multi-Level Select so now I have that sample which is perfect.
One thing I can't find though, is it possible to pass a very large array to the html page/javascript via a server side application (java, php, etc)?

 

[BillyRayPreachersSon]

How large is 'very' large? If it's, say, 10-20Kb or so, you could deliver it to the page in JS.

OR, if it's really much bigger, perhaps 50-500Kb or more, I'd investigate AJAX, more of which can be found in forum1600.

Hope this helps,
Dan



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