title: Multiple jQuery Filtizr on one page
body: <p>I am new in jQuery. I m using jquery filterizr for a single page. I have two separate gallery . And I want to use filterizr on them separately.
  I have given an id to the div of my gallery using below code, </p>
  
  <pre><code>$('#galleryID').filterizr();
  </code></pre>
  
  <p>But this code only work for one gallery. Second gallery has no effect. If I try to , filterize with second gallery id at the same time, it shows below error,</p>
  
  <pre><code>jquery.filterizr.js:814 Uncaught TypeError: Cannot read property 'length' of undefined
  at n.fn.init._getArrayOfUniqueItems (jquery.filterizr.js:814)
  at n.fn.init._handleFiltering (jquery.filterizr.js:707)
  at n.fn.init.filter (jquery.filterizr.js:193)
  at HTMLDivElement.&lt;anonymous&gt; (jquery.filterizr.js:520)
  at HTMLDivElement.dispatch (jquery-2.1.1.js:3)
  at HTMLDivElement.r.handle (jquery-2.1.1.js:3)
  at Object.trigger (jquery-2.1.1.js:3)
  at HTMLDivElement.&lt;anonymous&gt; (jquery-2.1.1.js:3)
  at Function.each (jquery-2.1.1.js:2)
  at n.fn.init.each (jquery-2.1.1.js:2)
  </code></pre>
  
  <p>Thus, i am unable to use filterizr both of them at the same time. It only work for one div. Can anyone help me or give me some example to how i can use this jQuery.filterizr ?</p>
  
  <p>EDIT: I have tried with different ID and also tried with class. But if i use class, then two gallery works as a single entity. Means, filtering does not work separately.</p>