/************************************************************************/
/* Rainbow Links Version 1.03 (2003.9.20)                               */
/* Script updated by Dynamicdrive.com for IE6                           */
/* Copyright (C) 1999-2001 TAKANASHI Mizuki                             */
/* takanasi@hamal.freemail.ne.jp                                        */
/*----------------------------------------------------------------------*/
/* Read it somehow even if my English text is a little wrong! ;-)       */
/*                                                                      */
/* Usage:                                                               */
/*  Insert '<script src="rainbow.js"></script>' into the BODY section,  */
/*  right after the BODY tag itself, before anything else.              */
/*  You don't need to add "onMouseover" and "onMouseout" attributes!!   */
/*                                                                      */
/*  If you'd like to add effect to other texts(not link texts), then    */
/*  add 'onmouseover="doRainbow(this);"' and                            */
/*  'onmouseout="stopRainbow();"' to the target tags.                   */
/*                                                                      */
/* This Script works with IE4,Netscape6,Mozilla browser and above only, */
/* but no error occurs on other browsers.                               */
/************************************************************************/


////////////////////////////////////////////////////////////////////
// Setting

var rate = 20;  // Increase amount(The degree of the transmutation)


////////////////////////////////////////////////////////////////////
// Main routine

if (document.getElementById)
window.onerror=new Function("return true")

var objActive1;  // The object which event occured in
var objActive2;  // The object which event occured in
var objActive3;  // The object which event occured in
var objActive4;  // The object which event occured in
var act1 = 0;    // Flag during the action
var act2 = 0;    // Flag during the action
var act3 = 0;    // Flag during the action
var act4 = 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 clrOrg2;     // A color before the change
var clrOrg3;     // A color before the change
var clrOrg4;     // A color before the change
var TimerID;    // Timer ID
var TimerID2;    // Timer ID
var TimerID3;    // Timer ID
var TimerID4;    // Timer ID


//if (document.all) {
//    document.onmouseover = doRainbowAnchor;
//    document.onmouseout = stopRainbowAnchor;
//}
//else if (document.getElementById) {
//    document.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
//    document.onmouseover = Mozilla_doRainbowAnchor;
//    document.onmouseout = Mozilla_stopRainbowAnchor;
//}


//=============================================================================
// doRainbow
//  This function begins to change a color.
//=============================================================================
function doRainbow1(obj1)
{
    if (act1 == 0) {
        act1 = 1;
        objActive1 = document.getElementById(obj1);
        clrOrg = objActive1.style.color;
        TimerID = setInterval("ChangeColor1()",200);
    }
}

function doRainbow2(obj2)
{
    if (act2 == 0) {
        act2 = 1;
        objActive2 = document.getElementById(obj2);
        clrOrg2 = objActive2.style.color;
        TimerID2 = setInterval("ChangeColor2()",200);
    }
}

function doRainbow3(obj3)
{
    if (act3 == 0) {
        act3 = 1;
        objActive3 = document.getElementById(obj3);
        clrOrg3 = objActive3.style.color;
        TimerID3 = setInterval("ChangeColor3()",200);
    }
}

function doRainbow4(obj4)
{
    if (act4 == 0) {
        act4 = 1;
        objActive4 = document.getElementById(obj4);
        clrOrg4 = objActive4.style.color;
        TimerID4 = setInterval("ChangeColor4()",200);
    }
}

//=============================================================================
// stopRainbow
//  This function stops to change a color.
//=============================================================================
function stopRainbow()
{
    if (act) {
        objActive.style.color = clrOrg;
        clearInterval(TimerID);
        act = 0;
    }
}


//=============================================================================
// doRainbowAnchor
//  This function begins to change a color. (of a anchor, automatically)
//=============================================================================
function doRainbowAnchor()
{
    if (act == 0) {
        var 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 != '') {
            objActive = obj;
            act = 1;
            clrOrg = objActive.style.color;
            TimerID = setInterval("ChangeColor1()",200);
        }
    }
}


//=============================================================================
// stopRainbowAnchor
//  This function stops to change a color. (of a anchor, automatically)
//=============================================================================
function stopRainbowAnchor()
{
    if (act) {
        if (objActive.tagName == 'A') {
            objActive.style.color = clrOrg;
            clearInterval(TimerID);
            act = 0;
        }
    }
}


//=============================================================================
// Mozilla_doRainbowAnchor(for Netscape6 and Mozilla browser)
//  This function begins to change a color. (of a anchor, automatically)
//=============================================================================
function Mozilla_doRainbowAnchor(e)
{
    if (act == 0) {
        obj = e.target;
        while (obj.nodeName != 'A' && obj.nodeName != 'BODY') {
            obj = obj.parentNode;
            if (obj.nodeName == 'A' || obj.nodeName == 'BODY')
                break;
        }

        if (obj.nodeName == 'A' && obj.href != '') {
            objActive = obj;
            act = 1;
            clrOrg = obj.style.color;
            TimerID = setInterval("ChangeColor1()",200);
        }
    }
}


//=============================================================================
// Mozilla_stopRainbowAnchor(for Netscape6 and Mozilla browser)
//  This function stops to change a color. (of a anchor, automatically)
//=============================================================================
function Mozilla_stopRainbowAnchor(e)
{
    if (act) {
        if (objActive.nodeName == 'A') {
            objActive.style.color = clrOrg;
            clearInterval(TimerID);
            act = 0;
        }
    }
}


//=============================================================================
// Change Color
//  This function changes a color actually.
//=============================================================================
function ChangeColor1()
{
    objActive1.style.color = makeColor(ColSelector=1);
}
function ChangeColor2()
{
    objActive2.style.color = makeColor(ColSelector=2);
}
function ChangeColor3()
{
    objActive3.style.color = makeColor(ColSelector=3);
}

function ChangeColor4()
{
    objActive4.style.color = makeColor(ColSelector=4);
}

//=============================================================================
// 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;


        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;
        }
    }
	if(ColSelector==1){
		elmG = elmG/2;
		if(elmG > elmR) elmR = elmG;
		elmB = elmB/2
		if(elmB > elmR) elmR = elmB;
	}
	if(ColSelector==2){
		elmR = (elmR + elmB)/2;
		elmB = 0;
		if(elmG > elmR) elmG = elmG/3;
	}
	if(ColSelector==3){
		elmG = elmG/3*2;
		elmB = elmB/2;
		elmR = elmR/2;
		if(elmR > elmB) elmB = elmR; elmR = elmR/2;
		if(elmR > elmG) elmG = elmR; elmR = elmR/2;
		if(elmB > elmG) elmG = elmB; elmB = elmB/2;
	}
	if(ColSelector==4){
		if(elmG >elmR) elmR = elmG;
		elmG = 0;
		if(elmB > elmR) elmB = elmG/3;
	}
    elmR = Math.floor(elmR).toString(16);
    elmG = Math.floor(elmG).toString(16);
    elmB = Math.floor(elmB).toString(16);

    if (elmR.length == 1)    elmR = "0" + elmR;
    if (elmG.length == 1)    elmG = "0" + elmG;
    if (elmB.length == 1)    elmB = "0" + elmB;


    elmH = elmH + rate;
    if (elmH >= 360)
        elmH = 0;

    return '#' + elmR + elmG + elmB;
}