$(document).ready(function() {

 $( 'body' ).append( '<div id="facebook"><div class="fb_icon"></div><div class="fb_container"><fb:like-box href="http://www.facebook.com/AgencjaVanguardPR" width="300" show_faces="false" border_color="" stream="true" header="true" class="fb_likebox"></fb:like-box></div></div>' );
 $( 'head' ).append( '<script src="http://connect.facebook.net/pl_PL/all.js#xfbml=1" type="text/javascript"></script>' );
 $( 'div#facebook div.fb_icon' ).mouseenter( function() {
  $( this ).parent( 'div#facebook' ).animate( { width: '335px' }, 200 );
 });
 $( 'div#facebook' ).mouseleave( function() {
  $( this ).animate( { width: '35px' }, 200 ).clearQueue();
 }).mouseout( function() {
  $( this ).animate( { width: '35px' }, 200 ).clearQueue();
 });

}); (jQuery);