Rainbow Text JavaScript Code

This JavaScript code will let you have all text contained within this JavaScript code parameter to come out in rainbow colors without all the font command tags making your HTML document large.

Insert this code into the HEAD section

<script language="JavaScript" type="text/javascript">

function MakeArray(n){
this.length=n;
for(var i=1; i<=n; i++) this[i]=i-1;
return this
}
hex=new MakeArray(16);
hex[11]="A"; hex[12]="B"; hex[13]="C"; hex[14]="D"; hex[15]="E"; hex[16]="F";
function ToHex(x){
var high=x/16;
var s=high+"";
s=s.substring(0,2);
high=parseInt(s,10);
var left=hex[high+1];
var low=x-high*16;
s=low+"";
s=s.substring(0,2);
low=parseInt(s,10);
var right=hex[low+1];
var string=left+""+right;
return string;
}
function rainbow(text){
text=text.substring(3,text.length-4);
color_d1=255;
mul=color_d1/text.length;
for(i=0;i < text.length;i++){
color_d1=255*Math.sin(i/(text.length/3)); // some other things you can try >>"=255-mul*i" to fade out, "=mul*i" to fade in, or try "255*Math.sin(i/(text.length/3))"
color_h1=ToHex(color_d1);
color_d2=mul*i;
color_h2=ToHex(color_d2);
document.write("<FONT COLOR='#FF"+color_h1+color_h2+"'>"+text.substring(i,i+1)+'</FONT>');
}
}
// --End Hiding Here -->
</script>

Insert this code into the BODY section

Simply Cut and Paste Script code; Change message to yours
Be sure to properly place script position in head & body of html
Example of this script operating seen below

This script has been in the DesignerWiz.com Public Library.