beginner pbm

[littleB]

Hi all

I have a pbm with netscape.
My script doesn't recognize this test :

if (griem1.elements['combo'].selectedIndex > 0)


it doesn't recognize this neither :

griem1.elements['combo'].options[griem1.elements['combo'].selectedIndex].value

This comes from a simple hmtl select.
I just want to test the value and pass it to another page.
My script works perfectly on IE, but NN is a little more capricious I guess...

I usually develop in C++, and i totally discovered javascript and html some days ago. That may explain my difficulties...
Please, help :)

[Charles]

Please post the URL. We may be psycho but we're not psychic.

[littleB]

Don't know if you will access to it, because it's a test machine on a specific network domain, but we can test :

http://molat2/~stef/griem/fr/lambda.php?element=Mg

I thought that specific pbm was commun and there was no utility to put the url

Anyway, if it doesn't work, i'll put it on another server. But i need a machine wich run apache and mysql.

[Charles]

Nope, I cannot access it.

[littleB]

this won't be complete (all the php and db is down on this server), but i just want, when you press the "valider" button, to store the selectedIndex value corresponding to the selected item in a variable. I guess the html source will be suffisant to this.

In NN, it simply stays empty...

http://mapage.noos.fr/~s.gouriou/griem/lambda.php

[littleB]

Or tell me if there's differences between IE and NN in the way to get the selected index from a combo-box.

[littleB]

My question was really simple in fact.

Here is the answer :

oelement = document.getElementById("combo");
var selindex = oelement.value;

Can't understand that no one has thinked about it... I do javascript for 2 days, but that seems so stupid to me...

Guess no one really take care about my question...

[Charles]

Just haven't had the time to look carefully at it.

1) That can also be written var selindex = document.getElementById("combo").value;

2) You should remove the prepended "javascript:" from your event handler. It's an error that some browsers ignore.

[littleB]

I just tested it on NN 4.x and it doesn't work...

Could you tell me if you have an idea to get the value of the selectedIndex in that old version ?

[Charles]

There are two ways to access form elements and Netscape 4 doesn't implement the "document.getElementById()" way. But don't worry about it. Only about 1% of users use that browser but your script will fail for between 6 and 12% of MSIE users. And there's nothing that you can do about that so make sure that your page works as well with as without JavaScript.