title: why the height of a frame is not constant in ie7
body: <p>i was developing a page which has two frames, the left frame is a treeview file, when click one of the file it will display on the right frame.the main page code is below</p>
  
  <pre><code>&lt;frameset  id="main_frame" cols="210,*" rows="*"&gt;
              &lt;frame src="FramesetLeftFrame.jsp" id="treeframe" noresize="noresize"/&gt;
              &lt;frame src=""  id="basefrm" noresize="noresize"/&gt;
  &lt;/frameset&gt;
  </code></pre>
  
  <p>the question is the treeview display correctly in chrome and firefox, but in ie7 the treeview becomes <strong>auto-height</strong>!when i click a folder with the files becomes more the height becomes higher.how can i fix the problem? i have tried add a min-height = 100% or height = 100%,it does not work.
     by the way, the tree is maked by javascript. FramesetLeftFrame.jsp is below:</p>
  
  <pre><code>  &lt;SCRIPT src="ua.js"&gt;&lt;/SCRIPT&gt;
  
    &lt;!-- Infrastructure code for the TreeView. DO NOT REMOVE.    --&gt;
    &lt;SCRIPT src="ftiens4.js"&gt;&lt;/SCRIPT&gt;
  
     &lt;!-- Scripts that define the tree. DO NOT REMOVE. --&gt;
     &lt;%@include file="buildTree.jsp" %&gt;
  
   &lt;/HEAD&gt;
   &lt;BODY&gt;
        &lt;SCRIPT&gt;initializeDocument()&lt;/SCRIPT&gt;
            &lt;NOSCRIPT&gt;
              A tree for site navigation will open here if you enable JavaScript in your browser.
            &lt;/NOSCRIPT&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>Thank you guys!</p>