/*************************************************************

      * fade script ver0.1 by Kouichirou@Eto.com 1996/02/20

      * Copyright (c) 1996 Kouichirou Eto. All Rights Reserved.

      * You can freely copy, use, modify this script,

      * if the credit is given in the source.

      * If you would like to get information for this script,

      * please access 

      */



     function makearray(n) {

         this.length = n;

         for(var i = 1; i <= n; i++)

             this[i] = 0;

         return this;

     }



     hexa = new makearray(16);

     for(var i = 0; i < 10; i++)

         hexa[i] = i;

     hexa[10]="a"; hexa[11]="b"; hexa[12]="c";

     hexa[13]="d"; hexa[14]="e"; hexa[15]="f";



     function hex(i) {

         if (i < 0)

             return "00";

         else if (i > 255)

             return "ff";

         else

             return "" + hexa[Math.floor(i/16)] + hexa[i%16];

     }



     function setbgColor(r, g, b) {

         var hr = hex(r); var hg = hex(g); var hb = hex(b);

         document.bgColor = "#"+hr+hg+hb;

     }



     function fade(sr, sg, sb, er, eg, eb, step) {

         for(var i = 0; i <= step; i++) {

             setbgColor(

             Math.floor(sr * ((step-i)/step) + er * (i/step)),

             Math.floor(sg * ((step-i)/step) + eg * (i/step)),

             Math.floor(sb * ((step-i)/step) + eb * (i/step)));

         }

     }



     /* Usage:

      *   fade(inr,ing,inb, outr,outg,outb, step);

      * example.

      *   fade(0,0,0, 255,255,255, 255);

      * fade from black to white with very slow speed.

      *   fade(255,0,0, 0,0,255, 50);

      *   fade(0xff,0x00,0x00, 0x00,0x00,0xff, 50); // same as above

      * fade from red to blue with fast speed.

      * step 2 is very fast and step 255 is very slow.

      */



     function fadein() {

         fade(255,255,255, 0,0,0, 64);

     }



     function fadeout() {

         /*fade(0,0,0, 255,255,255, 64); */

     }



     /* do fadein */

     fadein();



     /***** end fade script *****/