Autor: Cecillia Pedroni | Publicado: 2009-09-30T08:51:00-07:00

var rate = 100; // var obj; // The object which event occured invar act = 0; // Flag during the actionvar elmH = 0; // Huevar elmS = 128; // Saturationvar elmV = 255; // Valuevar clrOrg; // A color before the changevar TimerID; // Timer IDif (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?// HSVtoRGBif (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;}