jquery - append typed text to link url ( live ) - demo included -

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Hello I'm just making user profiles, and thought that they would be allowed to add a Facebook link to their profile, and Click or preview it, or look in the modal window, but it's a bit easier.

Basically, I want the user to type a Facebook ID in the Input box, show a preview and then type the typed text to the href. Link to the link so that it can test url on click.

JS: 

  $ (function () ($ (". FacebookID") keyboard (function () {var facebookID = $ (this) .val () ; $ (". FacebookID_preview"). HTML (facebookID); return false;}}}});   
 Basically, I want to add the typed text to the href link If you type stackoverflow, then   
 
 
 What about adding  
 < Code> $ ("div a") .attr ("href", "http://facebook.com/" +. $ (". FacebookID_preview") text ());   
  Return False  Before the statement? Note that the link selector may be one The actual webpage should be a bit more specific in the environment ...

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