title: How to make progress bar with jQuery and PHP while waiting server process?
body: <p>It used to be easy to find solutions of my problem when Google gives many accurate results that point to Stackoverflow. But, I didn't found one for this problem. If any of you have suggestion where should I go for this problem, please give me link to the answer.</p>
  
  <p>The case is I want to make searching index from database. The <strong>indexing process</strong> is triggered by <code>jQuery.getJSON</code>. It takes minutes to finish so <strong>I want to make progress bar to show that indexing process</strong>. I know how to make common ajax request using <code>.getJSON</code> as client side and PHP as server side, but It seems difficult for me to imagine how to make such progress bar.</p>
  
  <p>Is there any body that can explain to me how to do that?</p>