title: Uncaught TypeError: Cannot read property 'id' of undefined
body: <p>I was working on a site in WordPress. I don't know why, suddenly its giving the error <code>Uncaught TypeError: Cannot read property 'id' of undefined</code>. I tried to do almost every thing. Removed the Plugins, Removed the widgest. But it still complaining for it. Due to it my script is not working. </p>
  
  <p>The error is on line 63 of page, which contains</p>
  
  <pre><code>&lt;link rel="stylesheet" type="text/css" href="http://localhost/hhf/wp-content/plugins/jquery-mega-menu/css/dcjq-mega-menu.css" media="screen" /&gt;&lt;script type="text/javascript"&gt;/* &lt;![CDATA[ */
          (function($){$.fn.s3Slider = function(vars) { var element = this; var timeOut = (vars.timeOut != undefined) ? vars.timeOut : 4000; var current = null; var timeOutFn = null; var faderStat = true; var mOver = false; var items = $("#" + element[0].id + "Content ." + element[0].id + "Image"); var itemsSpan = $("#" + element[0].id + "Content ." + element[0].id + "Image span"); items.each(function(i) { $(items[i]).mouseover(function() { mOver = true; }); $(items[i]).mouseout(function() { mOver = false;fadeElement(true); }); });var fadeElement = function(isMouseOut) { var thisTimeOut = (isMouseOut) ? (timeOut/2) : timeOut; thisTimeOut = (faderStat) ? 10 : thisTimeOut; if(items.length &gt; 0) { timeOutFn = setTimeout(makeSlider, thisTimeOut); } else { console.log("Poof.."); } }; var makeSlider = function() {current = (current != null) ? current : items[(items.length-1)]; var currNo = jQuery.inArray(current, items) + 1; currNo = (currNo == items.length) ? 0 : (currNo - 1); var newMargin = $(element).width() * currNo; if(faderStat == true) { if(!mOver) { $(items[currNo]).fadeIn((timeOut/6), function() { if($(itemsSpan[currNo]).css('bottom') == 0) { $(itemsSpan[currNo]).slideUp((timeOut/6), function() { faderStat = false; current = items[currNo]; if(!mOver) { fadeElement(false); } }); } else { $(itemsSpan[currNo]).slideDown((timeOut/6), function() { faderStat = false; current = items[currNo]; if(!mOver) { fadeElement(false); } }); } }); } } else { if(!mOver) { if($(itemsSpan[currNo]).css('bottom') == 0) { $(itemsSpan[currNo]).slideDown((timeOut/6), function() { $(items[currNo]).fadeOut((timeOut/6), function() { faderStat = true; current = items[(currNo+1)]; if(!mOver) { fadeElement(false); } }); }); } else { $(itemsSpan[currNo]).slideUp((timeOut/6), function() { $(items[currNo]).fadeOut((timeOut/6), function() { faderStat = true; current = items[(currNo+1)]; if(!mOver) { fadeElement(false); } }); }); } } } }        
      makeSlider();};})(jQuery); jQuery(document).ready(function() { jQuery('#slider').s3Slider({ timeOut: 3000 }); });   /* ]]&gt; */&lt;/script&gt;
  </code></pre>
  
  <p>I am using jQuery Mega Menu widget plugin.</p>