
<!-- Hide the script from old browsers --

// Michael P. Scholtis (mpscho@planetx.bloomu.edu)
// All rights reserved.  January 15, 1996
// You may use this JavaScript example as you see fit, as long as the
// information within this comment above is included in your script.
 

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){              // Changes a int to hex (in the range 0 to 255)
   var high=x/16;
   var s=high+"";               //1
   s=s.substring(0,2);          //2 the combination of these are the same as the trunc function
   high=parseInt(s,10);         //3
   var left=hex[high+1];        // left part of the hex-value
   var low=x-high*16;           // calculate the rest of the values
   s=low+"";                    //1
   s=s.substring(0,2);          //2 the combination of these are the same as the trunc function
   low=parseInt(s,10);          //3
   var right=hex[low+1];        // right part of the hex-value
   var string=left+""+right;    // add the high and low together
   return string;
}

function rainbow(text){
   text=text.substring(3,text.length-4);        // gets rid of the HTML-comment-tags
   color_d1=255;                                // any value in 'begin' 0 to 255
   mul=color_d1/text.length;
   for(i=0;i<text.length;i++){
      color_d1=255*Math.sin(i/(text.length/3));
      color_h1=ToHex(color_d1);
      color_d2=mul*i;
      color_h2=ToHex(color_d2);
      document.write("<FONT size=5 face='Arial Black' COLOR='#FF"+color_h1+color_h2+"'>"+text.substring(i,i+1)+'</FONT>');
   }
}

// --End Hiding Here -->
