Need Help with Plugin translation

Hey guys..

I have created a plugin and i want to
translate the actual widget part

No matter where i looked i couldnt find the way
to connect the plugin php page with the transaltion.

this is what i use (the code inside the plugin)
but i the widget itself doesent get translated:

function translatesglp() {
load_plugin_textdomain( 'sglp', false, dirname( plugin_basename( __FILE__ ) ) . '/lang/' );
}

the action:

add_action( 'init', 'translatesglp' );

My translated files are in a folder inside the plugin
folder called lang..

Help anyone? (plz)