[Ajax]How to observe the value of the element using element id?

[Ajax]How to observe the value of the element using element id? - Printable Version

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[Ajax]How to observe the value of the element using element id? - El Forum - 06-07-2010

[eluser]suba[/eluser]
Hi all,
am using Ajax in CI.
I downloaded Ajax library from CI.
I have one dropdown list. When I change the value from dropdown list, I want to get selected value from dropdown list & using this value I want to check with my table then I want to retrieve some value from table related to my selected value.

My question is,
Using Ajax, How can I get selected value from dropdwon list?
pls advice me.

Code:
<select name='country' id='country' >

<option>United status</option>

<option>India</option>

---------------------

</select>

Then when I select my country, I want show state of the selected country.
Example Now choose India from dropdown list.
then I want to dispaly state list like this

Code:
<select name='state'>

<option>Tamil Nadu</option>

----------------------

</select>

State List , I stored in my table based on the country name. So I want to capture selected country value from dropdown list & I want to match with my table.

Please help to me.

I tried to use these two functions. But I coudn't get solution.

Code:
observe_form($form,$options=null);

remote_function($options)

[Ajax]How to observe the value of the element using element id? - El Forum - 06-07-2010

[eluser]suba[/eluser]
pls advice me