Need some help with a simple facebook PHP

Hello everyone, i hope somebody can help me, im using on my website a code for publish media content on the wall, but i see what is possible make the content will be publish on the friends wall of the user, im using right now this:

<script type="text/javascript">


 //stream publish method
            function streamPublishFriend(name, description, hrefTitle, hrefLink, userPrompt){
           FB.ui(
   {
     method: "stream.publish",
display: "popup",
target_id: "target_ids",
         message: "Im listen the song {title} on www.xxxxxx.net ",
     attachment: {
       name: "xxxxx.net - Download this song",
       caption: "xxxxx.net - The best music",
      description: (
         "Share your favorite music tracks and videos with " +
         "your friends on facebook using the new facebook application, " +
         "from www.xxxxxx.net ."
       ),
       href: "http://www.xxxxx.net/music/{title}/{enbedid}",
media: [{
        "type": "mp3", 
    "src": "http://www.xxxxx.net/getfile/{enbedid}.mp3", 
    "title": "{title}",
"artist": "{title}"
               }]
     },
     action_links: [
       { text: "XXXXX.net", href: "http://www.xxxxx.net" }
     ],
     user_message_prompt: "Im listening::"
   },
   function(response) {
     if (response && response.post_id) {
       alert("The song was post on your wall");
     } else {
       alert("The song wasnt post on your wall");
     }
   }
 );    
 
            }
			
    </script>

Code (markup):

but i see what with the function: target_id= is possible put there ethe account id of the friend, the thing i want to do is get the friend list and parse the friend id, something like this:

http://www.socialsensation.com/connect-proj/

I hope somebody can help me.

thank you