要完成此效果把如下代码加入到区域中 <script language="JavaScript"> if (document.all){ msg="---http://www.jojoo.net/"; msgColor="33ff33"; msgFont="Verdana"; msg=msg.split(''); n=msg.length; e=360/n; yp=0; xp=0; yb=40; xb=60; sa=0.07; sb=0; pa=new Array(); pb=new Array(); for (i=0; i < n; i++){ document.write(''); } function ani(){ yp=document.body.scrollTop+50; xp=document.body.scrollLeft+window.document.body.clientWidth-100; for (i=0; i < n; i++){ logo[i].style.top =yp+yb*Math.sin(sb+i*e*Math.PI/180); logo[i].style.left=xp+xb*Math.cos(sb+i*e*Math.PI/180); pb[i]=logo[i].style.pixelTop-yp; pa[i]=pb[i]-pb[i]*2; if (pa[i] < 1){ pa[i]=0; logo[i].style.visibility='hidden'; } else logo[i].style.visibility='visible'; logo[i].style.fontSize=pa[i]/2.7; } sb-=sa; setTimeout('ani()',100); } window.onload=ani; } </script>