Using javascript to populate one menu based on the choice in another menu

I have several menus which are dynamically populated (with PHP and MYSQL). The information is category based. How do I dynamically populate the second menu based on the choice the user makes in the first menu (without having to submit and refresh the page-- i.e. I need to use javascript instead of the server-side PHP).
Example:
Main Categories: 1) Numbers     2) Letters
Sub Categories:        1                      a
                               2                      b
                               3                      c
                              etc.                  etc.
the first menu contains the two main categories. I want the second list to be populated with only the sub categories of the main category the user chooses in the first menu (i.e. 1,2,3 etc. if he chose the main category 'Numbers' and a,b,c, etc. if he chose the main category 'Letters')
Is there an easy way to do this in Dreamweaver?
Thanks,
YWSW

How many items do you have in each dropdown? If it's a small number, you can download all of the options for the second dropdown and use client side javascript to filter based on the choice of the first dropdown. If the number is large, you'll need to use AJAX to dynamically pull the related items from the database.
Search the web for "dependent dropdown" or "cascading dropdown" for some technical details.

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Populate one cell based on the contents of another

Greetings to all
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I assume that "Jones" is "Jones Street" and "Smith" is "Smith Avenue".
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How to modify F4 help of one parameter based on the value of another?

Hi,
My Query is as follows:
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For example: The 3 selection-screen parameters are:
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hi
Please do it in this way..
TABLES: pa0001.
select-options: s_werks for pa0001-werks no intervals,
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*&      Form sub_pop_btrtl
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--> p1        text
<-- p2        text
form sub_pop_btrtl .
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      stepl_not_found      = 10
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IF sy-subrc <> 0.
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Message was edited by: Apple fan Michael

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Hi,
I am using OBIEE 11g,
I am trying to use a filter which is based on the result from another analysis. I have an analysis A which is as table 1, and I want to filter the respective columns of analysis B (Table B) based on analysis A to remove the duplicates for march 01, 02, and 07 , but it is not working properly. I took a max of start and end time when I created analysis A. Please let me know if I did anything wrong. thanks.
Table 1
Employee Number
Date
IN
Out
Start Time
End Time
xxxxxxx
2015-02-26
9:00
13:00
00:00:00
00:00:00
2015-02-27
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18:00
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00:00:00
2015-02-28
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00:00:00
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2015-03-01
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20:00
14:00:00
20:00:00
2015-03-02
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20:00
16:00:00
20:00:00
2015-03-07
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14:00:00
20:00:00
2015-03-11
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20:00
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20:00:00
2015-03-14
8:00
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Out
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What columns you want to show in the report?
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IN
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Hi
I need to visible and hide a textitem based on the value of another item.This form has 3 blocks, and the both item is in the first Master Block.
My code is:
if :RECORDTYPE=7 then
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:BLOCK.ITEM:=NULL;
end if;
I wrote the code in the Validate Trigger, but not working when moving Next Record & Previous Record
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Greetings,
I have virtually no experience with JavaScript and I am trying to figure out how to add some basic automation features to an Adobe form. I have a drop down box called "Hospital_Name" that will contain approximately 7 possible selections. When the user makes a selection, I would like to have the text field (called "Hospital_Address") below the drop down box populate with the corresponding address for the selection. I have the "Hospital_Address" text field configured for multiple lines and would like the address to have a line break between the street address and the city/state/zip.
For example, if the user selected "Hospital 1", the text field would display:
123 Main St
Anytown, CA 12345
Any help or examples you can provide would be greatly appreciated.

You have the element names within the object within brackets.
Make sure your brackets are properly placed and matched.
// Place all pre-population data into a single data structure
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"Bellevue Medical Center":{ line1: "2500 BMC Drive", line2: "Bellevue, NE 68123" },
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"CHI Lakeside":{ line1: "16901 Lakeside Hills Court", line2: "Omaha, NE 68130" },
"CHI Midlands":{ line1: "11111 S. 84th Street", line2: "Papillion, NE 68046" },
"Creighton University Medical Center":{ line1: "601 N. 30th Street", line2: "Omaha, NE 68131" },
"Nebraska Medical Center":{ line1: "4400 Emile Drive", line2: "Omaha, NE 68105" }
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console.show();console.clear():
for(I in Location) {
console.println(I);
// end debugging code;
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Do you get any error in the JavaScript console?
Just trying the line that defines the "Location", I get the following error:
SyntaxError: invalid property id
1:Console:Exec
undefined
All the form field in a PDF are processed by using JavaScript and any error in any script will stop JavaScript processing.
It might help to have a link to the problem form.
Make sure your brackets are properly placed and matched.
// Place all pre-population data into a single data structure
var Location = {
"--Hospital--":{ line1: " ", line2: " " },
"Bellevue Medical Center":{ line1: "2500 BMC Drive", line2: "Bellevue, NE 68123" },
"CHI Bergan Mercy":{ line1: "7500 Mercy Road", line2: "Omaha, NE 68124" },
"CHI Immanuel":{ line1: "6901 N. 72nd Street", line2: "Omaha, NE 68122" },
"CHI Lakeside":{ line1: "16901 Lakeside Hills Court", line2: "Omaha, NE 68130" },
"CHI Midlands":{ line1: "11111 S. 84th Street", line2: "Papillion, NE 68046" },
"Creighton University Medical Center":{ line1: "601 N. 30th Street", line2: "Omaha, NE 68131" },
"Nebraska Medical Center":{ line1: "4400 Emile Drive", line2: "Omaha, NE 68105" }
function SetFieldValues(Hospital_Name) {
    this.getField("AddLine1").value = Location[Hospital_Name].line1;
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Populate one text field on a form based on the value in another

I am new to APEX and building my first application.
When a user enters a value in one field, I would like to run a SQL command and then display a value in another field based on the value in the first field. For instance, if a user enters a part number in one field, when they tab off of the field, I would like to display the name of the part in the part name field.
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Thanks. That put me on the right track. I used that link to find the link http://htmldb.oracle.com/pls/otn/f?p=11933:11:2890374750690437 and then using the two was able to put together a solution.
I am down to one last issue. I am able to return the name back from the process and display it with an alert statement. Unfortunately, I am unable to display the value on the form.
I am doing the following.
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alert(gReturn);
//-->
</script>
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l_customer_name customer.customer_name%type;
begin
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Using javascript to populate one menu based on the choice in another menu

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