<HTML>
<HEAD>
<SCRIPT LANGUAGE="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)));
}
}
function fadein() {
fade(255, 255, 255, 0, 0, 0, 64);
}
function fadeout() {
fade(0, 0, 0, 255, 255, 255, 64);
}
</script>
</HEAD>
<BODY>
<INPUT TYPE="BUTTON" ONCLICK="javascript:fadein()" VALUE="fadein (Fra hvid til sort)">
<BR><BR>
<INPUT TYPE="BUTTON" ONCLICK="javascript:fadeout()" VALUE="fadeout (Fra sort til hvid)">
</BODY>
</HTML>
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