Copie e cole o código abaixo, dentro da abinha "origem", depois da tag <body>:
<SCRIPT language=JavaScript1.2>
var linkexchangefreq=Math.floor(Math.random()*11)
if (linkexchangefreq>5)
document.write('<style>.linkexchange{display:none}</style>')
</SCRIPT>
<B><I><FONT color=#ffffff size=4></FONT></I></B>
<P></P>
<P><FONT face="Comic Sans MS" size=5></FONT> </P>
<DIV align=center>
<CENTER> </CENTER>
<SCRIPT language=javascript>
<!--
var begcolor='#E4BEEE';
var endcolor='#BB64D4';
var steps=2;
var delay=200;
if(document.all && document.getElementById){
document.body.style.scrollbarBaseColor=begcolor;
function colorset(num){
this.beg=parseInt('0x'+begcolor.substring(num,num+2));
this.end=parseInt('0x'+endcolor.substring(num,num+2));
this.up=this.startup=(this.end>=this.beg)? true : false;
this.incr=Math.abs(this.end-this.beg)/steps;
this.current=this.beg;
}
function changecolors(){
var color=new Array();
for(i=1;i<=3; i++){
(data[i].up)? data[i].current+=data[i].incr : data[i].current-=data[i].incr;
if(data[i].startup){
if(data[i].current>=data[i].end){ data[i].up=false; data[i].current=data[i].end}
if(data[i].current<=data[i].beg){ data[i].up=true; data[i].current=data[i].beg }
}
if(!data[i].startup){
if(data[i].current<=data[i].end){ data[i].up=true; data[i].current=data[i].end}
if(data[i].current>=data[i].beg){ data[i].up=false; data[i].current=data[i].beg}
}
color[i]=data[i].current;
}
color[4]=Math.floor(color[1]).toString(16); if(color[4].length==1)color[4]='0'+color[4];
color[5]=Math.floor(color[2]).toString(16); if(color[5].length==1)color[5]='0'+color[5];
color[6]=Math.floor(color[3]).toString(16); if(color[6].length==1)color[6]='0'+color[6];
document.body.style.scrollbarBaseColor='#'+color[4]+color[5]+color[6];
//document.bgColor='#'+color[4]+color[5]+color[6];
}
var data=new Array();
for(i=1, j=1;i<=3; i++, j+=2)data[i]=new colorset(j);
window.onload=function(){ setInterval('changecolors()',delay) }
}
//-->
</SCRIPT>
Você pode alterar as cores, colocando o código da nova cor nos itens
var begcolor='#402C28';
var endcolor='#C08860';
O efeito só pode ser visto, depois que você clicar em "Visualizar".
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