title: how to use -ms-filter inside jquery animate
body: <p>i need to optimize my site for IE8. And it does not support opacity directly. It can be set using -ms-filter property. In my javascript am changing the opacity using jquery animate(). but how do i use it with -ms-filter</p>
  
  <p>currently am giving this</p>
  
  <pre><code>$('.topbar img').animate({opacity:1, -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)"},1500);
  </code></pre>
  
  <p>but its throwing a JS error. Invalid property obviously. Can anybody help me how to animate in IE8..? Help appreciated.</p>