文字来回反弹

脚本说明:
第一步:把如下代码加入<body>区域中
<SCRIPT LANGUAGE=JAVASCRIPT>
// Declare all Local Variables Here
Size2 = 42;
Pos2 = Size2;
Vel2 = 2;
Dir2 = 2;
Message2="我怕撞";
Size2-=Message2.length;

function Bouncer(){
Dir2==2 ? Pos2-=Vel2 : Pos2+=Vel2;
if (Pos2 < 1){
    Dir2=1;
   Pos2=1;
}
if (Pos2 > Size2){
Dir2=2;
    Pos2=Size2;
    }
Space2 = "";
for (count=1; count<Pos2; count++){
Space2+= " ";
}
document.PANEL2.Bar2.value = Space2 + Message2;
setTimeout( 'Bouncer();', 100);
}
</SCRIPT>
<FORM NAME=PANEL2>
<INPUT Size=21 Name=Bar2 Value="*********************************************************************************">
</FORM>

第二步:把如下代码加入<body>区域中
<body bgcolor="#fef4d9" ONLOAD="Bouncer()">