Cara membuat teks neon

<h3><script language="JavaScript1.2">
 
var message="Demo teks neon Demo teks neon"
var neonbasecolor="#BDBDBD"
var neontextcolor="#32FC0A"
var neontextcolor2="#DEFDD8"
var flashspeed=100						// speed of flashing in milliseconds
var flashingletters=3						// number of letters flashing in neontextcolor
var flashingletters2=1						// number of letters flashing in neontextcolor2 (0 to disable)
var flashpause=0						// the pause between flash-cycles in milliseconds
 
var n=0
if (document.all||document.getElementById){
document.write('<font color="'+neonbasecolor+'">')
for (m=0;m<message.length;m++)
document.write('<span id="neonlight'+m+'">'+message.charAt(m)+'</span>')
document.write('</font>')
}
else
document.write(message)
 
function crossref(number){
var crossobj=document.all? eval("document.all.neonlight"+number) : document.getElementById("neonlight"+number)
return crossobj
}
 
function neon(){
 
//Change all letters to base color
if (n==0){
for (m=0;m<message.length;m++)
crossref(m).style.color=neonbasecolor
}
 
//cycle through and change individual letters to neon color
crossref(n).style.color=neontextcolor
 
if (n>flashingletters-1) crossref(n-flashingletters).style.color=neontextcolor2 
if (n>(flashingletters+flashingletters2)-1) crossref(n-flashingletters-flashingletters2).style.color=neonbasecolor
 
 
if (n<message.length-1)
n++
else{
n=0
clearInterval(flashing)
setTimeout("beginneon()",flashpause)
return
}
}
 
function beginneon(){
if (document.all||document.getElementById)
flashing=setInterval("neon()",flashspeed)
}
beginneon()
 
 
</script></h3>