<p><script LANGUAGE="JavaScript"><!--

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

* 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 <http://eto.com/JavaScript/>

*/

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, 50);

}

function fadeout() {

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

}

/* do fadein */

fadein();

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

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

// --></script></p>