js特效，弹出窗体

<script type ="text/javascript">

   function Manage()           --------弹出小窗体 居中显示
   {
   var hdc=window.open('DengLu.aspx',"aa","width=300,height=200");
   var width=screen.width;
   var height=screen.height;
   hdc.moveTo((width-300)/2,(height-200)/2);
   }

   function OpenDialog() --------弹出全屏窗体
   {
   var width=screen.width;
   var height=screen.height;
   window.showModalDialog("DengLu.aspx","","dialogwidth="+width+"px;dialogHeight+="+height+"px;status=no;heip=no;scrollbars=no");
   }
    -----------自动弹出窗体
   window.open("DataList.aspx","new","height=230px,width=230px;top=10px,left=20px")

    </script>