Flash Show And Hide Box lets we very convenient embed flash, and control it show and hide.
You can find, download and install Flash Show And Hide Box directly from the Plugins section in WordPress.
If you want to install manually, download and unzip the
flash-show-and-hide-box.zip file and upload to the
/wp-content/plugins/flash-show-and-hide-box/ directory. Then activate the plugin through the Plugins section in WordPress.