The codes needs to be modified so that there is little delay in transfering items from one select box to another.
When you select "All", it takes a while to transfer the items into the select boxes.
When you select items from the right box to the left box, it takes a while to do that.
Please see if you can modify the codes to make it go faster.
The reseason way it is slow is because the amount of items (list) that are in the left side of the select box.
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request.
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IE 4.0, 5.0 and 6.0