multiple wp_add_dashboard_widget calls

My problems deals with displaying multiple dashboard widgets through one single function call.

Here is my code :
[Code moderated as per the Forum Rules. Please use the pastebin]

This coding makes appear the widget build by the first wp_add_dashboard_widget function call. The second one never shows up.

Anyone knows how I have to write these functions to make multiple widgets appear on the dashboard ?

Thanks by advance.