javascript code for Collapsible and Extendable

Question

HI:

 Can any one send me Javascript code to Collapsible  and Exdendable menu  for the following Scenario

1  .My task is i have 2 categories namely Car,Bike.Categorey Car has subcategory Benz,Sonata .

2   similarly the Bike has subcategorey Yamaha,Herohonda.

3  while clicking the category Car the subcategories Benz,Sonata has to open

4 Then when categorey Bike is clicked the subcategorey Yamaha,Herohonda has to be opened 5

5  At the same time already opened subcategory Benz,Sonata should be closed.

My code is given below:

Objective is when clicking the categorey particular subcategorey should be opned .please treate this mail is very very urgent and send me code. 

 

My Code:

 

<table>

<tr >

<td height="100%" width="17%">

<a href="#">Car</a>

<div>

<a href="#">Benz</a> <br />

<a href="#">Sonata</a>

</div>

</td>

</tr>

<tr >

<td >

<a href="#">Bike</a>

<div >

<a href="#">Pulsar</a> <br />

<a href="#">Honda</a>

</div>

</td>

</tr>

</table>

 

 

 

Thanks