Example 2

<HEAD>
<TITLE>Example 2</TITLE>
<SCRIPT LANGUAGE="JavaScript">
<!--
var p;
function init(){
  var i;
  p=new Array(3);
  for(i=0;i<3;i++)
    p[i]=false;
  return;
}
function clicked(x){
  document.images[x].src=p[x]?"space.gif":"queen.gif";
  p[x]=!p[x];
  return;
}
//-->
</SCRIPT>
</HEAD>
<BODY onLoad="init()">
<H1>Example 2</H1>
<IMG SRC="space.gif" BORDER=0>
<IMG SRC="space.gif" BORDER=0>
<IMG SRC="space.gif" BORDER=0>
<P>
<A HREF="JavaScript:clicked(0)">0</A>
<A HREF="JavaScript:clicked(1)">1</A>
<A HREF="JavaScript:clicked(2)">2</A>
</BODY>