think there are 3 selecting box in web site.1st one is jump menu and other 2 are select menu.usually jump menu what happen is when we select some thing from that it jump to another page or some where..i wanted to know .when i select some value on jump menu according to that the 2nd select menu value must be change .3rd select menu usually disable
it should be active to some particular value that selected from jump menu .how to do that?

please some one help mee.....

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