Disable flash button and div element using javascript

In my application, I've created 3 boxes. In the first button, I'm using a flash button, in my second button, I'm using a <div> element, and in my third button, I'm also using a <div> element. If I click the flash button that shows images from the disk to upload.

If I click the se开发者_Go百科cond box, it means that some operation should be performed, and if I click the third box, some other operation should be performed.

What I need to happen is if I click the first button, I want to disable the second and third buttons, if I click on the second button, I want to disable the first and third buttons, and if I click the third button, I want to disable the first and second buttons.

Can anyone help me?

You need to use ExternalInterface class (addCallback and call methods)