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<script language="JavaScript1.2">
<!--Source for Rainbow.js-->
var rate = 100; // Increase amount(The degree of the transmutation)
////////////////////////////////////////////////////////////////////
// Main routine
var obj; // The object which event occured in
var act = 0; // Flag during the action
var elmH = 0; // Hue
var elmS = 128; // Saturation
var elmV = 255; // Value
var clrOrg; // A color before the change
var TimerID; // Timer ID
if (navigator.appName.indexOf("Microsoft",0) != -1 && parseInt(navigator.appVersion) >= 4) {Browser = true;} else {Browser = false;}
if (Browser) {document.onmouseover = doRainbowAnchor;document.onmouseout = stopRainbowAnchor;}
//=============================================================================
// doRainbow
// This function begins to change a color.
//=============================================================================
function doRainbow()
{if (Browser && act != 1) {act = 1;obj = event.srcElement;clrOrg = obj.style.color;TimerID = setInterval("ChangeColor()",100);}}
//=============================================================================
// stopRainbow
// This function stops to change a color.
//=============================================================================
function stopRainbow()
{if (Browser && act != 0) {obj.style.color = clrOrg;clearInterval(TimerID);act = 0;}}
//=============================================================================
// doRainbowAnchor
// This function begins to change a color. (of a anchor, automatically)
//=============================================================================
function doRainbowAnchor()
{if (Browser && act != 1) {obj = event.srcElement;while (obj.tagName != 'A' && obj.tagName != 'BODY') {obj = obj.parentElement;if (obj.tagName == 'A' || obj.tagName == 'BODY')
break;}
if (obj.tagName == 'A' && obj.href != '') {act = 1;
clrOrg = obj.style.color;TimerID = setInterval("ChangeColor()",100);}}}
//=============================================================================
// stopRainbowAnchor
// This function stops to change a color. (of a anchor, automatically)
//=============================================================================
function stopRainbowAnchor(){if (Browser && act != 0) {if (obj.tagName == 'A') {obj.style.color = clrOrg;clearInterval(TimerID);act = 0;}}}
//=============================================================================
// Change Color
// This function changes a color actually.
//=============================================================================
function ChangeColor()
{obj.style.color = makeColor();}
//=============================================================================
// makeColor
// This function makes rainbow colors.
//=============================================================================
function makeColor()
{// Don't you think Color Gamut to look like Rainbow?
// HSVtoRGB
if (elmS == 0) {elmR = elmV; elmG = elmV; elmB = elmV;}
else {t1 = elmV;t2 = (255 - elmS) * elmV / 255;t3 = elmH % 60;t3 = (t1 - t2) * t3 / 60;if (elmH < 60) {elmR = t1; elmB = t2; elmG = t2 + t3;}
else if (elmH < 120) {elmG = t1; elmB = t2; elmR = t1 - t3;}else if (elmH < 180) {elmG = t1; elmR = t2; elmB = t2 + t3;}else if (elmH < 240) {elmB = t1; elmR = t2; elmG = t1 - t3;}
else if (elmH < 300) {elmB = t1; elmG = t2; elmR = t2 + t3;}else if (elmH < 360) {elmR = t1; elmG = t2; elmB = t1 - t3;}
else {elmR = 0; elmG = 0; elmB = 0;}}
elmR = Math.floor(elmR);elmG = Math.floor(elmG);elmB = Math.floor(elmB);clrRGB = '#' + elmR.toString(16) + elmG.toString(16) + elmB.toString(16);elmH = elmH + rate;if (elmH >= 360)
elmH = 0;return clrRGB;}
</script> | |
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