Post to your Facebook wall using Javascript SDK

Step1:

<div id="fb_div">
<h3>Post to your Facebook wall:</h3>
<br />
<textarea id="fb_message" name="fb_message" cols="70" rows="7">
</textarea>
<br />
<input type="button" value="Post on Wall" onClick="post_on_wall();" />
</div>

Step 2:

window.fbAsyncInit = function() {

FB.init({
appId : 'xxxxxxxxxxxxxxx', status : true, // check login status cookie : true, // enable cookies to allow the server to access the session xfbml : true , // parse XFBML oauth : true // Enable oauth authentication }
); }
;
function post_on_wall() {

FB.login(function(response) {

if (response.authResponse) {

alert('Logged in!'); // Post message to your wall var opts = {
message : document.getElementById('fb_message').value, name : 'Post Title', link : 'www.postlink.com', description : 'post description', picture : 'http://2.gravatar.com/avatar/8a13ef9d2ad87de23c6962b216f8e9f4?s=128&d=mm&r=G' }
;
FB.api('/me/feed', 'post', opts, function(response) {

if (!response || response.error) {

alert('Posting error occured'); }
else {
alert('Success - Post ID: ' + response.id); }
}
); }
else {
alert('Not logged in'); }
}
, {
scope : 'publish_stream' }
); }

Step3:
create a div with id=”fb-root” and paste below code after this div

<div id="fb-root">
</div>

Step4:

(function() {

var e = document.createElement('script'); // replacing with an older version until FB fixes the cancel-login bug e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js'; //e.src = 'scripts/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e); }
());