body{

background-image:url(http://tinypic.com/1ymvx1);
background-attachment:fixed;
background-repeat:no-repeat;
background-position:right;
width:1000px;

}


body{cursor:url(http://sheng.phy.nknu.edu.tw/a106.ani);}
a:hover{cursor:url(http://sheng.phy.nknu.edu.tw/a166.ani);}