CPoolGUI::DEFINE_showDownloadStatus

Description: Defines HTML elements for the package download status of a pool.
Parameter:

• BUT_step2: HTML constant name for the go to the pool generation dialog button.
• BUT_refresh: HTML constant name for the refresh button.
• LA_downloadStatus: HTML constant name for showing the download status.
• SPAN_poolSize: HTML constant name for showing the size of the pool.