flashing background copy & paste in body

<FONT FACE="MS Sans serif,Tahoma,Helvetica" SIZE="2">
<SCRIPT LANGUAGE="JavaScript">
function startflashing() {
setTimeout('document.bgColor="#FFFFFF"',1);
setTimeout('document.bgColor="#000000"',1);
setTimeout('startflashing()',1);
}
</SCRIPT>
<input type=button value="Start Headache" onClick="startflashing()">
<p>
<a href="http://matrix28.com/home.htm">Free Javascripts @ Matrix28.com</a>