核心代码：
<script type="text/javascript" src="http://********.com/jquery.js"></script>
<script type="text/javascript" src="http://*********.com/bootstrap.min.js"></script>
<script type="text/javascript" src="http://*********.com/jquery.fixbox.js"></script>
<script type="text/javascript">
//侧栏滚动
$("#fixedMain").fixbox({distanceToBottom:30,distanceToTop:10});
$(document).ready(function(){
console.log($(document).height());
});
</script>
