title: Can someone canonically differentiate between scrollTop and scrollHeight?
body: <p>For example,</p>
  
  <pre><code>function fnCheckScroll(){   
      var iNewHeight = oDiv.scrollHeight;
      var iscrolTop = oDiv.scrollTop; 
      alert("The value of the scrollHeight property is: "  + iNewHeight + "px"); 
      alert("The value of the scrollTop property is: " + iscrolTop + "px");        
  }
  
  &lt;div id="oDiv" style="overflow: scroll; height= 100px; width= 250px; text-align: left"&gt;
  Hello&lt;br&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>In IE 8, the value of scrollTop is always: 0 - returns 0 for scrollTop (even after scrolling)?</p>