How to install the "like" facebook on blogspot

I was searching yesterday about making the "like" facebook and I found it here 
thanks in advance,and this is her tutorial, down here:

Facebook, the site's most popular social networking services, recently released a new feature that is Faebook Like. If previously button "Like" is only visible on the site up only (for instance under a user's Facebook status updates), with this feature a user up to show my love / like directly on the site outside Facebook. But of course only on sites / blogs that put this button.

Actually, on a site up already available tools to get the code that could be placed on the website / blog (please see here). But unfortunately, at the option URL to Like in that tool, we can only specify a static URL, can not be read automatically the URL of each article / blog pages (dynamic URL). For that we need a little modification of code that can be can be up it.
for how it works: Please log in, go to Layout, then click Edit Template, tick the Expand Widget Templates option. Search <data:post.body/> code in your template, then the above / below pairs this code: 

<iframe expr:src='&quot;http://www.facebook.com/plugins/like.php?href=&quot; + data:post.url + &quot;&amp;action=like&amp;layout=standard&amp;show_faces=false&amp;width=450&amp;font=arial&amp;colorscheme=light&quot;' allowTransparency='true' frameborder='0' scrolling='no' style='border:none; overflow:hidden; width:450px; height:25px;'/>

Note:

• We can choose the display settings on the key posts, namely "Like" (Like) or "Recommend" (Recommend). 
• Please change the code like in the action = like to be action = recommend the choice of code above (code blue).If you want to please change the settings in the code-dressing in green, for options please see the website up.

more : inimu.com