var domEl = function(e,c,a,p,x) {
	if(e||c) {
		c=(typeof c=='string'||(typeof c=='object'&&!c.length))?[c]:c;	
		e=(!e&&c.length==1)?document.createTextNode(c[0]):e;	
		var n = (typeof e=='string')?document.createElement(e) : !(e&&e===c[0])?e.cloneNode(false):e.cloneNode(true);	
		if(e.nodeType!=3) {
			c[0]===e?c[0]='':'';
			for(var i=0,j=c.length;i<j;i++) {
				if(typeof c[i]=='string' && c[i].length!=0) n.appendChild(document.createTextNode(c[i]));
				else if(c[i].length!=0) n.appendChild(c[i].cloneNode(true));
			}
			if(a) {for(var i=(a.length-1);i>=0;i--) a[i][0]=='class'?n.className=a[i][1]:n.setAttribute(a[i][0],a[i][1]);}
		}
	}
	if(!p)return n;
	p=(typeof p=='object'&&!p.length)?[p]:p;
	for(var i=(p.length-1);i>=0;i--) {
		if(x){while(p[i].firstChild)p[i].removeChild(p[i].firstChild);
			if(!e&&!c&&p[i].parentNode)p[i].parentNode.removeChild(p[i]);}
		if(n) p[i].appendChild(n.cloneNode(true));
	}	
}

/*function $(){var r=[],a=arguments;for(var i=0,j=a.length;i<j;i++){(typeof a[i]=='string')?(r.push(document.getElementById(a[i]))):(r.push(a[i]))}
return(r.length==1)?r[0]:r}*/

function ALstart(elt, elt2) {
	(elt.value=='' || elt.value.length!=7) ? elt.value='ffffff' : 1;
	elt.value = elt.value.replace('#','');
	if (navigator.appName.substring(0,3) == "Net") document.captureEvents(Event.MOUSEMOVE)
	var position = positionSouris()
	position = position.split('|')
	var element = document.getElementById("color-picker");
	/*if ( (parseInt(position[1])+258) > document.body.offsetHeight )
		element.style.top = ( parseInt(position[1])-258 ) + 'px'
	else*/
		element.style.top = ( position[1] - 25) + 'px'
	
	/*if ( (parseInt(position[0])+266) > document.body.offsetWidth )
		element.style.left = ( parseInt(position[0])-266 ) + 'px'
	else*/
		element.style.left = '180px'
	
	while (element.firstChild) {
	  element.removeChild(element.firstChild);
	}
	makeColorSelectors(elt)
	var rech=new RegExp(/[^0-9A-Fa-f]/g);
	elt.value=elt.value.replace(rech,'');
	// Génération du color-picker
	ALmakeColorPicker(elt2)
}

function ALmakeColorPicker(elt) {
	myAddEventListener($(elt.id),'click',function() {
		$('color-picker').style.display = 'block';
		$('color-picker1').style.display = 'block';
	});
}

function positionSouris(e) {
	x = (navigator.appName.substring(0,3) == "Net") ? e.pageX : event.x+document.body.scrollLeft;
	y = (navigator.appName.substring(0,3) == "Net") ? e.pageY : event.y+document.body.scrollTop;
	return x + '|' + y
}

//Construction de toute la zone de couleur....
//********************************************************************************************************************************************************
//if(window.addEventListener) window.addEventListener('load',ALstart,false);
// A few configuration settings
var CROSSHAIRS_LOCATION = 'images/crosshairs.png';
var HUE_SLIDER_LOCATION = 'images/h.png';
var HUE_SLIDER_ARROWS_LOCATION = 'images/position.png';
var SAT_VAL_SQUARE_LOCATION = 'images/sv.png';

// Here are some boring utility functions. The real code comes later.

function hexToRgb(hex_string, default_)
{
    if (default_ == undefined)
    {
        default_ = null;
    }

    if (hex_string.substr(0, 1) == '#')
    {
        hex_string = hex_string.substr(1);
    }
    
    var r;
    var g;
    var b;
    if (hex_string.length == 3)
    {
        r = hex_string.substr(0, 1);
        r += r;
        g = hex_string.substr(1, 1);
        g += g;
        b = hex_string.substr(2, 1);
        b += b;
    }
    else if (hex_string.length == 6)
    {
        r = hex_string.substr(0, 2);
        g = hex_string.substr(2, 2);
        b = hex_string.substr(4, 2);
    }
    else
    {
        return default_;
    }
    
    r = parseInt(r, 16);
    g = parseInt(g, 16);
    b = parseInt(b, 16);
    if (isNaN(r) || isNaN(g) || isNaN(b))
    {
        return default_;
    }
    else
    {
        return {r: r / 255, g: g / 255, b: b / 255};
    }
}

function rgbToHex(r, g, b, includeHash)
{
    r = Math.round(r * 255);
    g = Math.round(g * 255);
    b = Math.round(b * 255);
    if (includeHash == undefined)
    {
        includeHash = true;
    }
    
    r = r.toString(16);
    if (r.length == 1)
    {
        r = '0' + r;
    }
    g = g.toString(16);
    if (g.length == 1)
    {
        g = '0' + g;
    }
    b = b.toString(16);
    if (b.length == 1)
    {
        b = '0' + b;
    }
    return ((includeHash ? '#' : '') + r + g + b).toUpperCase();
}

var arVersion = navigator.appVersion.split("MSIE");
var version = parseFloat(arVersion[1]);

function fixPNG(myImage)
{
    if ((version >= 5.5) && (version < 7) && (document.body.filters)) 
    {
        var node = document.createElement('span');
        node.id = myImage.id;
        node.className = myImage.className;
        node.title = myImage.title;
        node.style.cssText = myImage.style.cssText;
        node.style.setAttribute('filter', "progid:DXImageTransform.Microsoft.AlphaImageLoader"
                                        + "(src=\'" + myImage.src + "\', sizingMethod='scale')");
        node.style.fontSize = '0';
        node.style.width = myImage.width.toString() + 'px';
        node.style.height = myImage.height.toString() + 'px';
        node.style.display = 'inline-block';
        return node;
    }
    else
    {
        return myImage.cloneNode(false);
    }
}

function trackDrag(node, handler)
{
    function fixCoords(x, y)
    {
        var nodePageCoords = pageCoords(node);
        x = (x - nodePageCoords.x) + document.documentElement.scrollLeft;
        y = (y - nodePageCoords.y) + document.documentElement.scrollTop;
        if (x < 0) x = 0;
        if (y < 0) y = 0;
        if (x > node.offsetWidth - 1) x = node.offsetWidth - 1;
        if (y > node.offsetHeight - 1) y = node.offsetHeight - 1;
        return {x: x, y: y};
    }
    function mouseDown(ev)
    {
        var coords = fixCoords(ev.clientX, ev.clientY);
        var lastX = coords.x;
        var lastY = coords.y;
        handler(coords.x, coords.y);

        function moveHandler(ev)
        {
            var coords = fixCoords(ev.clientX, ev.clientY);
            if (coords.x != lastX || coords.y != lastY)
            {
                lastX = coords.x;
                lastY = coords.y;
                handler(coords.x, coords.y);
            }
        }
		
        function upHandler(ev)
        {
            myRemoveEventListener(document, 'mouseup', upHandler);
            myRemoveEventListener(document, 'mousemove', moveHandler);
            myAddEventListener(node, 'mousedown', mouseDown);
        }
        myAddEventListener(document, 'mouseup', upHandler);
        myAddEventListener(document, 'mousemove', moveHandler);
        myRemoveEventListener(node, 'mousedown', mouseDown);
        if (ev.preventDefault) ev.preventDefault();
    }
    myAddEventListener(node, 'mousedown', mouseDown);
    node.onmousedown = function(e) { return false; };
    node.onselectstart = function(e) { return false; };
    node.ondragstart = function(e) { return false; };
}

var eventListeners = [];

function findEventListener(node, event, handler)
{
    var i;
    for (i in eventListeners)
    {
        if (eventListeners[i].node == node && eventListeners[i].event == event
         && eventListeners[i].handler == handler)
        {
            return i;
        }
    }
    return null;
}
function myAddEventListener(node, event, handler)
{
    if (findEventListener(node, event, handler) != null)
    {
        return;
    }

    if (!node.addEventListener)
    {
        node.attachEvent('on' + event, handler);
    }
    else
    {
        node.addEventListener(event, handler, false);
    }

    eventListeners.push({node: node, event: event, handler: handler});
}

function removeEventListenerIndex(index)
{
    var eventListener = eventListeners[index];
    delete eventListeners[index];
    
    if (!eventListener.node.removeEventListener)
    {
        eventListener.node.detachEvent('on' + eventListener.event,
                                       eventListener.handler);
    }
    else
    {
        eventListener.node.removeEventListener(eventListener.event,
                                               eventListener.handler, false);
    }
}

function myRemoveEventListener(node, event, handler)
{
    removeEventListenerIndex(findEventListener(node, event, handler));
}

function cleanupEventListeners()
{
    var i;
    for (i = eventListeners.length; i > 0; i--)
    {
        if (eventListeners[i] != undefined)
        {
            removeEventListenerIndex(i);
        }
    }
}
myAddEventListener(window, 'unload', cleanupEventListeners);

function hsvToRgb(hue, saturation, value)
{
	
    var red;
    var green;
    var blue;		
    if (value == 0.0)
    {
        red = 0;
        green = 0;
        blue = 0;
    }
    else
    {
        var i = Math.floor(hue * 6);
        var f = (hue * 6) - i;
        var p = value * (1 - saturation);
        var q = value * (1 - (saturation * f));
        var t = value * (1 - (saturation * (1 - f)));
        switch (i)
        {
            case 1: red = q; green = value; blue = p; break;
            case 2: red = p; green = value; blue = t; break;
            case 3: red = p; green = q; blue = value; break;
            case 4: red = t; green = p; blue = value; break;
            case 5: red = value; green = p; blue = q; break;
            case 6: // fall through
            case 0: red = value; green = t; blue = p; break;
        }
    }
		
    return {r: red, g: green, b: blue};
}

function rgbToHsv(red, green, blue)
{
    var max = Math.max(Math.max(red, green), blue);
    var min = Math.min(Math.min(red, green), blue);
    var hue;
    var saturation;
    var value = max;
    if (min == max)
    {
        hue = 0;
        saturation = 0;
    }
    else
    {
        var delta = (max - min);
        saturation = delta / max;
        if (red == max)
        {
            hue = (green - blue) / delta;
        }
        else if (green == max)
        {
            hue = 2 + ((blue - red) / delta);
        }
        else
        {
            hue = 4 + ((red - green) / delta);
        }
        hue /= 6;
        if (hue < 0)
        {
            hue += 1;
        }
        if (hue > 1)
        {
            hue -= 1;
        }
    }
    return {
        h: hue,
        s: saturation,
        v: value
    };
}

function pageCoords(node)
{
    var x = node.offsetLeft;
    var y = node.offsetTop;
    var parent = node.offsetParent;
    while (parent != null)
    {
        x += parent.offsetLeft;
        y += parent.offsetTop;
        parent = parent.offsetParent;
    }
    return {x: x, y: y};
}

// The real code begins here.
var huePositionImg = document.createElement('img');
huePositionImg.galleryImg = false;
huePositionImg.style.width = "20px";
huePositionImg.height = 11;
huePositionImg.src = HUE_SLIDER_ARROWS_LOCATION;
huePositionImg.style.position = 'absolute';

var hueSelectorImg = document.createElement('img');
hueSelectorImg.galleryImg = false;
hueSelectorImg.style.width = "20px";
hueSelectorImg.style.height = "200px";
hueSelectorImg.src = HUE_SLIDER_LOCATION;
hueSelectorImg.style.display = 'block';

var satValImg = document.createElement('img');
satValImg.galleryImg = false;
satValImg.width = 200;
satValImg.height = 200;
satValImg.src = SAT_VAL_SQUARE_LOCATION;
satValImg.style.display = 'block';

var crossHairsImg = document.createElement('img');
crossHairsImg.galleryImg = false;
crossHairsImg.width = 21;
crossHairsImg.height = 21;
crossHairsImg.src = CROSSHAIRS_LOCATION;
crossHairsImg.style.position = 'absolute';

function makeColorSelector(inputBox)
{
    var rgb, hsv
    
    function colorChanged()
    {
        var hex = rgbToHex(rgb.r, rgb.g, rgb.b);
        var hueRgb = hsvToRgb(hsv.h, 1, 1);
        var hueHex = rgbToHex(hueRgb.r, hueRgb.g, hueRgb.b);
        previewDiv.style.background = hex;
        inputBox.value = '#'+hex.substr(1);
        satValDiv.style.background = hueHex;
        crossHairs.style.left = ((hsv.v*199)-10).toString() + 'px';
        crossHairs.style.top = (((1-hsv.s)*199)-10).toString() + 'px';
        huePos.style.top = ((hsv.h*199)-5).toString() + 'px';
    }
    function rgbChanged()
    {
        hsv = rgbToHsv(rgb.r, rgb.g, rgb.b);
        colorChanged();
    }
    function hsvChanged()
    {
        rgb = hsvToRgb(hsv.h, hsv.s, hsv.v);
        colorChanged();
    }
    
    var colorSelectorDiv = document.createElement('div');

    var satValDiv = document.createElement('div');
    satValDiv.style.position = 'relative';
    satValDiv.style.width = '200px';
    satValDiv.style.height = '200px';
    colorSelectorDiv.style.margin = '14px';
    var newSatValImg = fixPNG(satValImg);
    satValDiv.appendChild(newSatValImg);
    var crossHairs = crossHairsImg.cloneNode(false);
    satValDiv.appendChild(crossHairs);
    function satValDragged(x, y)
    {
        hsv.s = 1-(y/199);
        hsv.v = (x/199);
        hsvChanged();
    }
    trackDrag(satValDiv, satValDragged)
    colorSelectorDiv.appendChild(satValDiv);

    var hueDiv = document.createElement('div');
    hueDiv.style.position = 'absolute';
    hueDiv.style.right = '22px';
    hueDiv.style.top = '14px';
    hueDiv.style.width = '20px';
    hueDiv.style.height = '200px';
    var huePos = fixPNG(huePositionImg);
    hueDiv.appendChild(hueSelectorImg.cloneNode(false));
    hueDiv.appendChild(huePos);
    function hueDragged(x, y)
    {
        hsv.h = y/199;
        hsvChanged();
    }
    trackDrag(hueDiv, hueDragged);
    colorSelectorDiv.appendChild(hueDiv);
    
    var previewDiv = document.createElement('div');
    previewDiv.style.height = '20px'
    previewDiv.style.width = '228px';
    previewDiv.style.position = 'absolute';
    previewDiv.style.top = '220px';
    previewDiv.style.left = '14px';
    previewDiv.style.border = '1px solid black';
    colorSelectorDiv.appendChild(previewDiv);
    
    function inputBoxChanged(first)
    {
		if(inputBox.value.length!=6) return;

        rgb = hexToRgb(inputBox.value, {r: 0, g: 0, b: 0});
        rgbChanged();
    }
    myAddEventListener(inputBox, 'keyup', inputBoxChanged);
    inputBoxChanged(true);
    return colorSelectorDiv;
}

function makeColorSelectors(elt)
{
    var inputNodes = document.getElementsByTagName('input');
    var i;
	var j=0;
	var parent = elt.parentNode;
	var prevNode = elt.previousSibling;
	var selector = makeColorSelector(elt);
	selector.id = 'color-picker'+(++j);
	selector.style.display = 'none';
			
	document.getElementById('color-picker').appendChild(selector);	
	var img=domEl('img','',[['id','close'],['src','images/color-picker-close.png'],['title','Fermer']]);
	img.style.position = 'absolute';
	img.style.left = '250px';
	img.onclick = function() {
		document.getElementById('color-picker').removeChild(selector)
		this.parentNode.style.display='none';
		if(elt.value!='') {
			if(elt.value.substring(0, 1)!="#")
				elt.value = "#"+elt.value;
		}
	}
	document.getElementById('color-picker').appendChild(img);				
}


//myAddEventListener(window, 'load', makeColorSelectors);
//********************************************************************************************************************************************************