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function createHexArray(n) { this.length=n; for (var i=1; i<=n; i++) this[i]=i-1; this[11]="A"; this[12]="B"; this[13]="C"; this[14]="D"; this[15]="E"; this[16]="F"; return this; } hx = new createHexArray(16); function convertToHex(x) { var high=x/16; var s=high+""; s=s.substring(0,2); high=parseInt(s,10); var left=hx[high+1]; var low=x-high*16; s=low+""; s=s.substring(0,2); low=parseInt(s,10); var right=hx[low+1]; var string=left+""+right; return string; } function makeRainbow(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)); "255*Math.sin(i/(text.length/3))" color_h1=convertToHex(color_d1); color_d2=mul*i; color_h2=convertToHex(color_d2); document.write(""+text.substring(i,i+1)+""); } } //-->