Javascript Question On Dynamic Select Boxes

Jan 28, 2002

Question: How hard is the following to do in javascript and does anyone have a good example of this in use (aka how do you do it? )

4 drop down boxes all on one page. I have 4 items in the list of the first drop down box.

Red
Blue
Green
Orange

When I select one, I want the choice to be taken out of the list for the second drop down box. So if I select Blue in Drop Down #1, Drop Down #2 now has the option of

Red
Green
Orange

If I select Red from the list the Drop Down #3 now has

Green
Orange


Then if i select Orange, the last drop down has only one value and that is Green.

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I have the below JS code to change up a select box based on what is selected in another select box. IE9 broke this somehow. It still works in other browsers as well as IE8 and IE7.

When you select something in select box A, it properly populates select box B. However when you go back and change select box A again the script stops working completely.

[Code]...

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Dec 3, 2010

the unobtrusive dynamic select boxes are working great.I just wonder if its possible make this script into 2 dynamic select boxes.Like make this script work with 2 dynamic selex boxed, I did try to enter a 3rd ID but dident get it to work.

PHP Code:

/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
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if its any other javascripts out thats allready made and can do it?Right now the 3rd select box works like it isent dynamic.

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<script language="JavaScript" type="text/javascript">
<!--
/*[code]....

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// Their id must be "combo_0", "combo_1", "combo_2" etc.

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Jul 25, 2002

I searched here and some other places on the net but cant find anything that suits my needs. I have a SELECT box with 3 values Code:

<form name="form1">
<select name="length">
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<option name="length" value="7">--7 Days--</option>
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</select>
</form>

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Code JavaScript:
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[Code].....

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[Code]...

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I am trying to add values of selected options in select boxes that update on any change...

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Each time I dynamically load the options of a select box and then try to do anything with it (such as clicking it or using other JS code on it) I get the following Firefox error:Error: Index or size is negative or greater than the allowed amount = NS_ERROR_DOM_INDEX_SIZE_ERR

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<script language="javascript">
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I have more than once wanted to manipulate the contents of select boxes
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I like to build the <select> <optgroup> <option> set using HTML as
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I'm not entirely familiar with jQuery coding, but I've given it my best shot to get this script working properly, and I can't seem to manage it. Here is my scenario: I'm creating a website for a friend who sells custom jewelery cuts. There are 4 different parameters you have to choose about your cut, and we would like to change the image displayed to match the parameters you select so you have a picture of what your going to purchase. The idea is like this:

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[Code]...

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[Code]...

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Code:
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