211、页面中上小弹跳的文字

211、页面中上小弹跳的文字

<script language="JavaScript">

<!--

done = 0;

step = 4

function anim(yp,yk)

{

 if(document.layers) document.layers["napis"].top=yp;

 else  document.all["napis"].style.top=yp;

 

 if(yp>yk) step = -4

 if(yp<60) step = 4

 

 setTimeout('anim('+(yp+step)+','+yk+')', 10);

}

 

 

function start()

{

 if(done) return

 done = 1;

 

 if(navigator.appName=="Netscape") {

  document.napis.left=innerWidth/2 - 145;

  anim(60,innerHeight - 60)

 }

 else {

  napis.style.left=280;

  anim(60,document.body.offsetHeight - 60)

 }

 

}

 

//-->

</script>

                  <div id="napis"

style="position: absolute; top: 159px; width: 400px; height: 78px; left: 215px"><font size="5"><b>上下不停弹跳的文本</b></font></div>

                  <script language="JavaScript">

<!--

 setTimeout('start()',10);

//-->

</script>

 

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