title: what is difference between _height & height for movie clip in as2 flash
body: <p>I am doing zoom in and out for Movie clip. I get the original height by mc.height. After scale the movieclip, i need the increased height of movie clip. So i have used the mc._height property.
  But it gives more higher values it is not original value. But also it changes on roll over within the value less and more value.</p>
  
  <p>Pls Help me.</p>
  
  <p>Thanks. </p>
  
  <p>Hi, I am doing zooming concepts. On zooming movieclip width is working correctly. But in case of tweening image the width &amp; height is increasing abnormally. What is reason i did not find that. Pls help me.</p>
  
  <pre><code>this.onMouseMove = function() {
  constrainedMove(bg_mc, 4, 1);
  };
  
  function constrainedMove(target:MovieClip, speed:Number, dir:Number) {
  var mousePercent:Number = _xmouse/Stage.width;
  var mSpeed:Number;
  if (dir == 1) {
      mSpeed = 1-mousePercent;
  } else {
      mSpeed = mousePercent;
  }
  target.destX = Math.round(-((target._width-Stage.width)*mSpeed));
  
       target.onEnterFrame = function() {
      if (target._x == target.destX) {
          delete target.onEnterFrame;
      } 
                else if (target._x&gt;target.destX) {
          target._x -= Math.ceil((target._x-target.destX)*(speed/100));
      } 
                else if (target._x&lt;target.destX) {
          target._x += Math.ceil((target.destX-target._x)*(speed/100));
      }
  };
  }
  </code></pre>