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copied!<p>You can study about js and ajax here <a href="http://www.w3schools.com/ajax/default.asp" rel="nofollow">http://www.w3schools.com/ajax/default.asp</a> will help a lot. Of course all js functions if called from internal js script should be inside <code><script></script></code> and if called from external you call the js gile like <code><script src"somejs.js"></script></code> and inside js there is no need for <code><script></code> tags again. Now all those function do not work by simply declaring them. So this:</p> <pre><code>function sayHello(){ alert("Happy coding"); } </code></pre> <p>doesn't work because it is just declared and not called into action. So in jQuery that you use after we declare some functions as the sayHello above we use:</p> <pre><code>jQuery(document).ready(function($){ sayHello(); }); </code></pre> <p>Doing this we say that when everything is fully loaded so our DOM has its final shape then let the games begin, make some DOM manipulations etc</p> <p>Above also you don't specify the type of your call meaning <code>POST</code> or <code>GET</code>. Those verbs are the alpha and omega of http requests. Typically we use <code>GET</code> to bring data like in your case here and <code>POST</code> to send some data for storage to the server. A very common <code>GET</code> request is this:</p> <pre><code> $.ajax({ type : 'GET', url : someURL, data : mydata, //optional if you want to send sth to the server like a user's id and get only that specific user's info success : function(data) { console.log("Ajax rocks"); }, error: function(){ console.log("Ajax failed"); } }); </code></pre>

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