Off On

<script>

// (C) 2000 by CodeLifter.com
// http://www.codelifter.com
// Free for all users, but leave in this  header

// blink speed in miliseconds
var rate = 333;

// true to start automatically, else false
var DoIt = true

// the three blink colors
var Color1 = "#FF0000"
var Color2 = "#00FF00"
var Color3 = "#0000FF"

// the color if/when turned off
var ColorX = "#C0C0C0"

var i = 0;
function doTriStateRainbow(){
   if (document.all){
      if (DoIt){
         i++;
         if (i==1) C = Color1
         if (i==2) C = Color2
         if (i==3) C = Color3
         document.body.style.scrollbarBaseColor = C
         if (i>2) i=0;
         timer=setTimeout('doTriStateRainbow()', rate)
      }else{
         document.body.style.scrollbarBaseColor = ColorX
      }
   }
}

</script>

onload="doTriStateRainbow()"

<a href="#" onClick="DoIt=false">Off</a>
<a href="#" onClick="DoIt=true;doTriStateRainbow()">On</a>

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