/**
 * jscolor, JavaScript Color Picker
 *
 * @version 1.4.0
 * @license GNU Lesser General Public License, http://www.gnu.org/copyleft/lesser.html
 * @author  Jan Odvarko, http://odvarko.cz
 * @created 2008-06-15
 * @updated 2012-07-06
 * @link    http://jscolor.com
 */


var jscolor = {
    dir: '', // location of jscolor directory (leave empty to autodetect)
    bindClass: 'color', // class name
    binding: true, // automatic binding via <input class="...">
    preloading: true, // use image preloading?


    install: function() {
        jscolor.addEvent(window, 'load', jscolor.init);
    },
    init: function() {
        if (jscolor.binding) {
            jscolor.bind();
        }
        if (jscolor.preloading) {
            jscolor.preload();
        }
    },
    getDir: function() {
        if (!jscolor.dir) {
            var detected = jscolor.detectDir();
            jscolor.dir = detected !== false ? detected : 'jscolor/';
        }
        return jscolor.dir;
    },
    detectDir: function() {
        var base = location.href;

        var e = document.getElementsByTagName('base');
        for (var i = 0; i < e.length; i += 1) {
            if (e[i].href) {
                base = e[i].href;
            }
        }

        var e = document.getElementsByTagName('script');
        for (var i = 0; i < e.length; i += 1) {
            if (e[i].src && /(^|\/)jscolor\.js([?#].*)?$/i.test(e[i].src)) {
                var src = new jscolor.URI(e[i].src);
                var srcAbs = src.toAbsolute(base);
                srcAbs.path = srcAbs.path.replace(/[^\/]+$/, ''); // remove filename
                srcAbs.query = null;
                srcAbs.fragment = null;
                return srcAbs.toString();
            }
        }
        return false;
    },
    bind: function() {
        var matchClass = new RegExp('(^|\\s)(' + jscolor.bindClass + ')\\s*(\\{[^}]*\\})?', 'i');
        var e = document.getElementsByTagName('input');
        for (var i = 0; i < e.length; i += 1) {
            var m;
            if (!e[i].color && e[i].className && (m = e[i].className.match(matchClass))) {
                var prop = {};
                if (m[3]) {
                    try {
                        prop = (new Function('return (' + m[3] + ')'))();
                    } catch (eInvalidProp) {
                    }
                }
                e[i].color = new jscolor.color(e[i], prop);
            }
        }
    },
    preload: function() {
        for (var fn in jscolor.imgRequire) {
            if (jscolor.imgRequire.hasOwnProperty(fn)) {
                jscolor.loadImage(fn);
            }
        }
    },
    images: {
        pad: [181, 101],
        sld: [16, 101],
        cross: [15, 15],
        arrow: [7, 11]
    },
    imgRequire: {},
    imgLoaded: {},
    requireImage: function(filename) {
        jscolor.imgRequire[filename] = true;
    },
    loadImage: function(filename) {
        if (!jscolor.imgLoaded[filename]) {
            jscolor.imgLoaded[filename] = new Image();
            jscolor.imgLoaded[filename].src = jscolor.getDir() + filename;
        }
    },
    fetchElement: function(mixed) {
        return typeof mixed === 'string' ? document.getElementById(mixed) : mixed;
    },
    addEvent: function(el, evnt, func) {
        if (el.addEventListener) {
            el.addEventListener(evnt, func, false);
        } else if (el.attachEvent) {
            el.attachEvent('on' + evnt, func);
        }
    },
    fireEvent: function(el, evnt) {
        if (!el) {
            return;
        }
        if (document.createEvent) {
            var ev = document.createEvent('HTMLEvents');
            ev.initEvent(evnt, true, true);
            el.dispatchEvent(ev);
        } else if (document.createEventObject) {
            var ev = document.createEventObject();
            el.fireEvent('on' + evnt, ev);
        } else if (el['on' + evnt]) { // alternatively use the traditional event model (IE5)
            el['on' + evnt]();
        }
    },
    getElementPos: function(e) {
        var e1 = e, e2 = e;
        var x = 0, y = 0;
        if (e1.offsetParent) {
            do {
                x += e1.offsetLeft;
                y += e1.offsetTop;
            } while (e1 = e1.offsetParent);
        }
        while ((e2 = e2.parentNode) && e2.nodeName.toUpperCase() !== 'BODY') {
            x -= e2.scrollLeft;
            y -= e2.scrollTop;
        }
        return [x, y];
    },
    getElementSize: function(e) {
        return [e.offsetWidth, e.offsetHeight];
    },
    getRelMousePos: function(e) {
        var x = 0, y = 0;
        if (!e) {
            e = window.event;
        }
        if (typeof e.offsetX === 'number') {
            x = e.offsetX;
            y = e.offsetY;
        } else if (typeof e.layerX === 'number') {
            x = e.layerX;
            y = e.layerY;
        }
        return {x: x, y: y};
    },
    getViewPos: function() {
        if (typeof window.pageYOffset === 'number') {
            return [window.pageXOffset, window.pageYOffset];
        } else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) {
            return [document.body.scrollLeft, document.body.scrollTop];
        } else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
            return [document.documentElement.scrollLeft, document.documentElement.scrollTop];
        } else {
            return [0, 0];
        }
    },
    getViewSize: function() {
        if (typeof window.innerWidth === 'number') {
            return [window.innerWidth, window.innerHeight];
        } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
            return [document.body.clientWidth, document.body.clientHeight];
        } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
            return [document.documentElement.clientWidth, document.documentElement.clientHeight];
        } else {
            return [0, 0];
        }
    },
    URI: function(uri) { // See RFC3986

        this.scheme = null;
        this.authority = null;
        this.path = '';
        this.query = null;
        this.fragment = null;

        this.parse = function(uri) {
            var m = uri.match(/^(([A-Za-z][0-9A-Za-z+.-]*)(:))?((\/\/)([^\/?#]*))?([^?#]*)((\?)([^#]*))?((#)(.*))?/);
            this.scheme = m[3] ? m[2] : null;
            this.authority = m[5] ? m[6] : null;
            this.path = m[7];
            this.query = m[9] ? m[10] : null;
            this.fragment = m[12] ? m[13] : null;
            return this;
        };

        this.toString = function() {
            var result = '';
            if (this.scheme !== null) {
                result = result + this.scheme + ':';
            }
            if (this.authority !== null) {
                result = result + '//' + this.authority;
            }
            if (this.path !== null) {
                result = result + this.path;
            }
            if (this.query !== null) {
                result = result + '?' + this.query;
            }
            if (this.fragment !== null) {
                result = result + '#' + this.fragment;
            }
            return result;
        };

        this.toAbsolute = function(base) {
            var base = new jscolor.URI(base);
            var r = this;
            var t = new jscolor.URI;

            if (base.scheme === null) {
                return false;
            }

            if (r.scheme !== null && r.scheme.toLowerCase() === base.scheme.toLowerCase()) {
                r.scheme = null;
            }

            if (r.scheme !== null) {
                t.scheme = r.scheme;
                t.authority = r.authority;
                t.path = removeDotSegments(r.path);
                t.query = r.query;
            } else {
                if (r.authority !== null) {
                    t.authority = r.authority;
                    t.path = removeDotSegments(r.path);
                    t.query = r.query;
                } else {
                    if (r.path === '') {
                        t.path = base.path;
                        if (r.query !== null) {
                            t.query = r.query;
                        } else {
                            t.query = base.query;
                        }
                    } else {
                        if (r.path.substr(0, 1) === '/') {
                            t.path = removeDotSegments(r.path);
                        } else {
                            if (base.authority !== null && base.path === '') {
                                t.path = '/' + r.path;
                            } else {
                                t.path = base.path.replace(/[^\/]+$/, '') + r.path;
                            }
                            t.path = removeDotSegments(t.path);
                        }
                        t.query = r.query;
                    }
                    t.authority = base.authority;
                }
                t.scheme = base.scheme;
            }
            t.fragment = r.fragment;

            return t;
        };

        function removeDotSegments(path) {
            var out = '';
            while (path) {
                if (path.substr(0, 3) === '../' || path.substr(0, 2) === './') {
                    path = path.replace(/^\.+/, '').substr(1);
                } else if (path.substr(0, 3) === '/./' || path === '/.') {
                    path = '/' + path.substr(3);
                } else if (path.substr(0, 4) === '/../' || path === '/..') {
                    path = '/' + path.substr(4);
                    out = out.replace(/\/?[^\/]*$/, '');
                } else if (path === '.' || path === '..') {
                    path = '';
                } else {
                    var rm = path.match(/^\/?[^\/]*/)[0];
                    path = path.substr(rm.length);
                    out = out + rm;
                }
            }
            return out;
        }

        if (uri) {
            this.parse(uri);
        }

    },
    /*
     * Usage example:
     * var myColor = new jscolor.color(myInputElement)
     */

    color: function(target, prop) {


        this.required = true; // refuse empty values?
        this.adjust = true; // adjust value to uniform notation?
        this.hash = false; // prefix color with # symbol?
        this.caps = true; // uppercase?
        this.slider = true; // show the value/saturation slider?
        this.valueElement = target; // value holder
        this.styleElement = target; // where to reflect current color
        this.onImmediateChange = null; // onchange callback (can be either string or function)
        this.hsv = [0, 0, 1]; // read-only  0-6, 0-1, 0-1
        this.rgb = [1, 1, 1]; // read-only  0-1, 0-1, 0-1
        this.minH = 0; // read-only  0-6
        this.maxH = 6; // read-only  0-6
        this.minS = 0; // read-only  0-1
        this.maxS = 1; // read-only  0-1
        this.minV = 0; // read-only  0-1
        this.maxV = 1; // read-only  0-1

        this.pickerOnfocus = true; // display picker on focus?
        this.pickerMode = 'HSV'; // HSV | HVS
        this.pickerPosition = 'bottom'; // left | right | top | bottom
        this.pickerSmartPosition = true; // automatically adjust picker position when necessary
        this.pickerButtonHeight = 20; // px
        this.pickerClosable = false;
        this.pickerCloseText = 'Close';
        this.pickerButtonColor = 'ButtonText'; // px
        this.pickerFace = 10; // px
        this.pickerFaceColor = 'ThreeDFace'; // CSS color
        this.pickerBorder = 1; // px
        this.pickerBorderColor = 'ThreeDHighlight ThreeDShadow ThreeDShadow ThreeDHighlight'; // CSS color
        this.pickerInset = 1; // px
        this.pickerInsetColor = 'ThreeDShadow ThreeDHighlight ThreeDHighlight ThreeDShadow'; // CSS color
        this.pickerZIndex = 10000;


        for (var p in prop) {
            if (prop.hasOwnProperty(p)) {
                this[p] = prop[p];
            }
        }


        this.hidePicker = function() {
            if (isPickerOwner()) {
                removePicker();
            }
        };


        this.showPicker = function() {
            if (!isPickerOwner()) {
                var tp = jscolor.getElementPos(target); // target pos
                var ts = jscolor.getElementSize(target); // target size
                var vp = jscolor.getViewPos(); // view pos
                var vs = jscolor.getViewSize(); // view size
                var ps = getPickerDims(this); // picker size
                var a, b, c;
                switch (this.pickerPosition.toLowerCase()) {
                    case 'left':
                        a = 1;
                        b = 0;
                        c = -1;
                        break;
                    case 'right':
                        a = 1;
                        b = 0;
                        c = 1;
                        break;
                    case 'top':
                        a = 0;
                        b = 1;
                        c = -1;
                        break;
                    default:
                        a = 0;
                        b = 1;
                        c = 1;
                        break;
                }
                var l = (ts[b] + ps[b]) / 2;

                // picker pos
                if (!this.pickerSmartPosition) {
                    var pp = [
                        tp[a],
                        tp[b] + ts[b] - l + l * c
                    ];
                } else {
                    var pp = [
                        -vp[a] + tp[a] + ps[a] > vs[a] ?
                                (-vp[a] + tp[a] + ts[a] / 2 > vs[a] / 2 && tp[a] + ts[a] - ps[a] >= 0 ? tp[a] + ts[a] - ps[a] : tp[a]) :
                                tp[a],
                        -vp[b] + tp[b] + ts[b] + ps[b] - l + l * c > vs[b] ?
                                (-vp[b] + tp[b] + ts[b] / 2 > vs[b] / 2 && tp[b] + ts[b] - l - l * c >= 0 ? tp[b] + ts[b] - l - l * c : tp[b] + ts[b] - l + l * c) :
                                (tp[b] + ts[b] - l + l * c >= 0 ? tp[b] + ts[b] - l + l * c : tp[b] + ts[b] - l - l * c)
                    ];
                }
                drawPicker(pp[a], pp[b]);
            }
        };


        this.importColor = function() {
            if (!valueElement) {
                this.exportColor();
            } else {
                if (!this.adjust) {
                    if (!this.fromString(valueElement.value, leaveValue)) {
                        styleElement.style.backgroundImage = styleElement.jscStyle.backgroundImage;
                        styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
                        styleElement.style.color = styleElement.jscStyle.color;
                        this.exportColor(leaveValue | leaveStyle);
                    }
                } else if (!this.required && /^\s*$/.test(valueElement.value)) {
                    valueElement.value = '';
                    styleElement.style.backgroundImage = styleElement.jscStyle.backgroundImage;
                    styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
                    styleElement.style.color = styleElement.jscStyle.color;
                    this.exportColor(leaveValue | leaveStyle);

                } else if (this.fromString(valueElement.value)) {
                    // OK
                } else {
                    this.exportColor();
                }
            }
        };


        this.exportColor = function(flags) {
            if (!(flags & leaveValue) && valueElement) {
                var value = this.toString();
                if (this.caps) {
                    value = value.toUpperCase();
                }
                if (this.hash) {
                    value = '#' + value;
                }
                valueElement.value = value;
            }
            if (!(flags & leaveStyle) && styleElement) {
                styleElement.style.backgroundImage = "none";
                styleElement.style.backgroundColor =
                        '#' + this.toString();
                styleElement.style.color =
                        0.213 * this.rgb[0] +
                        0.715 * this.rgb[1] +
                        0.072 * this.rgb[2]
                        < 0.5 ? '#FFF' : '#000';
            }
            if (!(flags & leavePad) && isPickerOwner()) {
                redrawPad();
            }
            if (!(flags & leaveSld) && isPickerOwner()) {
                redrawSld();
            }
        };


        this.fromHSV = function(h, s, v, flags) { // null = don't change
            if (h !== null) {
                h = Math.max(0.0, this.minH, Math.min(6.0, this.maxH, h));
            }
            if (s !== null) {
                s = Math.max(0.0, this.minS, Math.min(1.0, this.maxS, s));
            }
            if (v !== null) {
                v = Math.max(0.0, this.minV, Math.min(1.0, this.maxV, v));
            }

            this.rgb = HSV_RGB(
                    h === null ? this.hsv[0] : (this.hsv[0] = h),
                    s === null ? this.hsv[1] : (this.hsv[1] = s),
                    v === null ? this.hsv[2] : (this.hsv[2] = v)
                    );

            this.exportColor(flags);
        };


        this.fromRGB = function(r, g, b, flags) { // null = don't change
            if (r !== null) {
                r = Math.max(0.0, Math.min(1.0, r));
            }
            if (g !== null) {
                g = Math.max(0.0, Math.min(1.0, g));
            }
            if (b !== null) {
                b = Math.max(0.0, Math.min(1.0, b));
            }

            var hsv = RGB_HSV(
                    r === null ? this.rgb[0] : r,
                    g === null ? this.rgb[1] : g,
                    b === null ? this.rgb[2] : b
                    );
            if (hsv[0] !== null) {
                this.hsv[0] = Math.max(0.0, this.minH, Math.min(6.0, this.maxH, hsv[0]));
            }
            if (hsv[2] !== 0) {
                this.hsv[1] = hsv[1] === null ? null : Math.max(0.0, this.minS, Math.min(1.0, this.maxS, hsv[1]));
            }
            this.hsv[2] = hsv[2] === null ? null : Math.max(0.0, this.minV, Math.min(1.0, this.maxV, hsv[2]));

            // update RGB according to final HSV, as some values might be trimmed
            var rgb = HSV_RGB(this.hsv[0], this.hsv[1], this.hsv[2]);
            this.rgb[0] = rgb[0];
            this.rgb[1] = rgb[1];
            this.rgb[2] = rgb[2];

            this.exportColor(flags);
        };


        this.fromString = function(hex, flags) {
            var m = hex.match(/^\W*([0-9A-F]{3}([0-9A-F]{3})?)\W*$/i);
            if (!m) {
                return false;
            } else {
                if (m[1].length === 6) { // 6-char notation
                    this.fromRGB(
                            parseInt(m[1].substr(0, 2), 16) / 255,
                            parseInt(m[1].substr(2, 2), 16) / 255,
                            parseInt(m[1].substr(4, 2), 16) / 255,
                            flags
                            );
                } else { // 3-char notation
                    this.fromRGB(
                            parseInt(m[1].charAt(0) + m[1].charAt(0), 16) / 255,
                            parseInt(m[1].charAt(1) + m[1].charAt(1), 16) / 255,
                            parseInt(m[1].charAt(2) + m[1].charAt(2), 16) / 255,
                            flags
                            );
                }
                return true;
            }
        };


        this.toString = function() {
            return (
                    (0x100 | Math.round(255 * this.rgb[0])).toString(16).substr(1) +
                    (0x100 | Math.round(255 * this.rgb[1])).toString(16).substr(1) +
                    (0x100 | Math.round(255 * this.rgb[2])).toString(16).substr(1)
                    );
        };


        function RGB_HSV(r, g, b) {
            var n = Math.min(Math.min(r, g), b);
            var v = Math.max(Math.max(r, g), b);
            var m = v - n;
            if (m === 0) {
                return [null, 0, v];
            }
            var h = r === n ? 3 + (b - g) / m : (g === n ? 5 + (r - b) / m : 1 + (g - r) / m);
            return [h === 6 ? 0 : h, m / v, v];
        }


        function HSV_RGB(h, s, v) {
            if (h === null) {
                return [v, v, v];
            }
            var i = Math.floor(h);
            var f = i % 2 ? h - i : 1 - (h - i);
            var m = v * (1 - s);
            var n = v * (1 - s * f);
            switch (i) {
                case 6:
                case 0:
                    return [v, n, m];
                case 1:
                    return [n, v, m];
                case 2:
                    return [m, v, n];
                case 3:
                    return [m, n, v];
                case 4:
                    return [n, m, v];
                case 5:
                    return [v, m, n];
            }
        }


        function removePicker() {
            delete jscolor.picker.owner;
            document.getElementsByTagName('body')[0].removeChild(jscolor.picker.boxB);
        }


        function drawPicker(x, y) {
            if (!jscolor.picker) {
                jscolor.picker = {
                    box: document.createElement('div'),
                    boxB: document.createElement('div'),
                    pad: document.createElement('div'),
                    padB: document.createElement('div'),
                    padM: document.createElement('div'),
                    sld: document.createElement('div'),
                    sldB: document.createElement('div'),
                    sldM: document.createElement('div'),
                    btn: document.createElement('div'),
                    btnS: document.createElement('span'),
                    btnT: document.createTextNode(THIS.pickerCloseText)
                };
                for (var i = 0, segSize = 4; i < jscolor.images.sld[1]; i += segSize) {
                    var seg = document.createElement('div');
                    seg.style.height = segSize + 'px';
                    seg.style.fontSize = '1px';
                    seg.style.lineHeight = '0';
                    jscolor.picker.sld.appendChild(seg);
                }
                jscolor.picker.sldB.appendChild(jscolor.picker.sld);
                jscolor.picker.box.appendChild(jscolor.picker.sldB);
                jscolor.picker.box.appendChild(jscolor.picker.sldM);
                jscolor.picker.padB.appendChild(jscolor.picker.pad);
                jscolor.picker.box.appendChild(jscolor.picker.padB);
                jscolor.picker.box.appendChild(jscolor.picker.padM);
                jscolor.picker.btnS.appendChild(jscolor.picker.btnT);
                jscolor.picker.btn.appendChild(jscolor.picker.btnS);
                jscolor.picker.box.appendChild(jscolor.picker.btn);
                jscolor.picker.boxB.appendChild(jscolor.picker.box);
            }

            var p = jscolor.picker;

            // controls interaction
            p.box.onmouseup =
                    p.box.onmouseout = function() {
                target.focus();
            };
            p.box.onmousedown = function() {
                abortBlur = true;
            };
            p.box.onmousemove = function(e) {
                if (holdPad || holdSld) {
                    holdPad && setPad(e);
                    holdSld && setSld(e);
                    if (document.selection) {
                        document.selection.empty();
                    } else if (window.getSelection) {
                        window.getSelection().removeAllRanges();
                    }
                    dispatchImmediateChange();
                }
            };
            p.padM.onmouseup =
                    p.padM.onmouseout = function() {
                if (holdPad) {
                    holdPad = false;
                    jscolor.fireEvent(valueElement, 'change');
                }
            };
            p.padM.onmousedown = function(e) {
                // if the slider is at the bottom, move it up
                switch (modeID) {
                    case 0:
                        if (THIS.hsv[2] === 0) {
                            THIS.fromHSV(null, null, 1.0);
                        }
                        ;
                        break;
                    case 1:
                        if (THIS.hsv[1] === 0) {
                            THIS.fromHSV(null, 1.0, null);
                        }
                        ;
                        break;
                }
                holdPad = true;
                setPad(e);
                dispatchImmediateChange();
            };
            p.sldM.onmouseup =
                    p.sldM.onmouseout = function() {
                if (holdSld) {
                    holdSld = false;
                    jscolor.fireEvent(valueElement, 'change');
                }
            };
            p.sldM.onmousedown = function(e) {
                holdSld = true;
                setSld(e);
                dispatchImmediateChange();
            };

            // picker
            var dims = getPickerDims(THIS);
            p.box.style.width = dims[0] + 'px';
            p.box.style.height = dims[1] + 'px';

            // picker border
            p.boxB.style.position = 'absolute';
            p.boxB.style.clear = 'both';
            p.boxB.style.left = x + 'px';
            p.boxB.style.top = y + 'px';
            p.boxB.style.zIndex = THIS.pickerZIndex;
            p.boxB.style.border = THIS.pickerBorder + 'px solid';
            p.boxB.style.borderColor = THIS.pickerBorderColor;
            p.boxB.style.background = THIS.pickerFaceColor;

            // pad image
            p.pad.style.width = jscolor.images.pad[0] + 'px';
            p.pad.style.height = jscolor.images.pad[1] + 'px';

            // pad border
            p.padB.style.position = 'absolute';
            p.padB.style.left = THIS.pickerFace + 'px';
            p.padB.style.top = THIS.pickerFace + 'px';
            p.padB.style.border = THIS.pickerInset + 'px solid';
            p.padB.style.borderColor = THIS.pickerInsetColor;

            // pad mouse area
            p.padM.style.position = 'absolute';
            p.padM.style.left = '0';
            p.padM.style.top = '0';
            p.padM.style.width = THIS.pickerFace + 2 * THIS.pickerInset + jscolor.images.pad[0] + jscolor.images.arrow[0] + 'px';
            p.padM.style.height = p.box.style.height;
            p.padM.style.cursor = 'crosshair';

            // slider image
            p.sld.style.overflow = 'hidden';
            p.sld.style.width = jscolor.images.sld[0] + 'px';
            p.sld.style.height = jscolor.images.sld[1] + 'px';

            // slider border
            p.sldB.style.display = THIS.slider ? 'block' : 'none';
            p.sldB.style.position = 'absolute';
            p.sldB.style.right = THIS.pickerFace + 'px';
            p.sldB.style.top = THIS.pickerFace + 'px';
            p.sldB.style.border = THIS.pickerInset + 'px solid';
            p.sldB.style.borderColor = THIS.pickerInsetColor;

            // slider mouse area
            p.sldM.style.display = THIS.slider ? 'block' : 'none';
            p.sldM.style.position = 'absolute';
            p.sldM.style.right = '0';
            p.sldM.style.top = '0';
            p.sldM.style.width = jscolor.images.sld[0] + jscolor.images.arrow[0] + THIS.pickerFace + 2 * THIS.pickerInset + 'px';
            p.sldM.style.height = p.box.style.height;
            try {
                p.sldM.style.cursor = 'pointer';
            } catch (eOldIE) {
                p.sldM.style.cursor = 'hand';
            }

            // "close" button
            function setBtnBorder() {
                var insetColors = THIS.pickerInsetColor.split(/\s+/);
                var pickerOutsetColor = insetColors.length < 2 ? insetColors[0] : insetColors[1] + ' ' + insetColors[0] + ' ' + insetColors[0] + ' ' + insetColors[1];
                p.btn.style.borderColor = pickerOutsetColor;
            }
            p.btn.style.display = THIS.pickerClosable ? 'block' : 'none';
            p.btn.style.position = 'absolute';
            p.btn.style.left = THIS.pickerFace + 'px';
            p.btn.style.bottom = THIS.pickerFace + 'px';
            p.btn.style.padding = '0 15px';
            p.btn.style.height = '18px';
            p.btn.style.border = THIS.pickerInset + 'px solid';
            setBtnBorder();
            p.btn.style.color = THIS.pickerButtonColor;
            p.btn.style.font = '12px sans-serif';
            p.btn.style.textAlign = 'center';
            try {
                p.btn.style.cursor = 'pointer';
            } catch (eOldIE) {
                p.btn.style.cursor = 'hand';
            }
            p.btn.onmousedown = function() {
                THIS.hidePicker();
            };
            p.btnS.style.lineHeight = p.btn.style.height;

            // load images in optimal order
            switch (modeID) {
                case 0:
                    var padImg = 'hs.png';
                    break;
                case 1:
                    var padImg = 'hv.png';
                    break;
            }
            p.padM.style.backgroundImage = "url('" + jscolor.getDir() + "cross.gif')";
            p.padM.style.backgroundRepeat = "no-repeat";
            p.sldM.style.backgroundImage = "url('" + jscolor.getDir() + "arrow.gif')";
            p.sldM.style.backgroundRepeat = "no-repeat";
            p.pad.style.backgroundImage = "url('" + jscolor.getDir() + padImg + "')";
            p.pad.style.backgroundRepeat = "no-repeat";
            p.pad.style.backgroundPosition = "0 0";

            // place pointers
            redrawPad();
            redrawSld();

            jscolor.picker.owner = THIS;
            document.getElementsByTagName('body')[0].appendChild(p.boxB);
        }


        function getPickerDims(o) {
            var dims = [
                2 * o.pickerInset + 2 * o.pickerFace + jscolor.images.pad[0] +
                        (o.slider ? 2 * o.pickerInset + 2 * jscolor.images.arrow[0] + jscolor.images.sld[0] : 0),
                o.pickerClosable ?
                        4 * o.pickerInset + 3 * o.pickerFace + jscolor.images.pad[1] + o.pickerButtonHeight :
                        2 * o.pickerInset + 2 * o.pickerFace + jscolor.images.pad[1]
            ];
            return dims;
        }


        function redrawPad() {
            // redraw the pad pointer
            switch (modeID) {
                case 0:
                    var yComponent = 1;
                    break;
                case 1:
                    var yComponent = 2;
                    break;
            }
            var x = Math.round((THIS.hsv[0] / 6) * (jscolor.images.pad[0] - 1));
            var y = Math.round((1 - THIS.hsv[yComponent]) * (jscolor.images.pad[1] - 1));
            jscolor.picker.padM.style.backgroundPosition =
                    (THIS.pickerFace + THIS.pickerInset + x - Math.floor(jscolor.images.cross[0] / 2)) + 'px ' +
                    (THIS.pickerFace + THIS.pickerInset + y - Math.floor(jscolor.images.cross[1] / 2)) + 'px';

            // redraw the slider image
            var seg = jscolor.picker.sld.childNodes;

            switch (modeID) {
                case 0:
                    var rgb = HSV_RGB(THIS.hsv[0], THIS.hsv[1], 1);
                    for (var i = 0; i < seg.length; i += 1) {
                        seg[i].style.backgroundColor = 'rgb(' +
                                (rgb[0] * (1 - i / seg.length) * 100) + '%,' +
                                (rgb[1] * (1 - i / seg.length) * 100) + '%,' +
                                (rgb[2] * (1 - i / seg.length) * 100) + '%)';
                    }
                    break;
                case 1:
                    var rgb, s, c = [THIS.hsv[2], 0, 0];
                    var i = Math.floor(THIS.hsv[0]);
                    var f = i % 2 ? THIS.hsv[0] - i : 1 - (THIS.hsv[0] - i);
                    switch (i) {
                        case 6:
                        case 0:
                            rgb = [0, 1, 2];
                            break;
                        case 1:
                            rgb = [1, 0, 2];
                            break;
                        case 2:
                            rgb = [2, 0, 1];
                            break;
                        case 3:
                            rgb = [2, 1, 0];
                            break;
                        case 4:
                            rgb = [1, 2, 0];
                            break;
                        case 5:
                            rgb = [0, 2, 1];
                            break;
                    }
                    for (var i = 0; i < seg.length; i += 1) {
                        s = 1 - 1 / (seg.length - 1) * i;
                        c[1] = c[0] * (1 - s * f);
                        c[2] = c[0] * (1 - s);
                        seg[i].style.backgroundColor = 'rgb(' +
                                (c[rgb[0]] * 100) + '%,' +
                                (c[rgb[1]] * 100) + '%,' +
                                (c[rgb[2]] * 100) + '%)';
                    }
                    break;
            }
        }


        function redrawSld() {
            // redraw the slider pointer
            switch (modeID) {
                case 0:
                    var yComponent = 2;
                    break;
                case 1:
                    var yComponent = 1;
                    break;
            }
            var y = Math.round((1 - THIS.hsv[yComponent]) * (jscolor.images.sld[1] - 1));
            jscolor.picker.sldM.style.backgroundPosition =
                    '0 ' + (THIS.pickerFace + THIS.pickerInset + y - Math.floor(jscolor.images.arrow[1] / 2)) + 'px';
        }


        function isPickerOwner() {
            return jscolor.picker && jscolor.picker.owner === THIS;
        }


        function blurTarget() {
            if (valueElement === target) {
                THIS.importColor();
            }
            if (THIS.pickerOnfocus) {
                THIS.hidePicker();
            }
        }


        function blurValue() {
            if (valueElement !== target) {
                THIS.importColor();
            }
        }


        function setPad(e) {
            var mpos = jscolor.getRelMousePos(e);
            var x = mpos.x - THIS.pickerFace - THIS.pickerInset;
            var y = mpos.y - THIS.pickerFace - THIS.pickerInset;
            switch (modeID) {
                case 0:
                    THIS.fromHSV(x * (6 / (jscolor.images.pad[0] - 1)), 1 - y / (jscolor.images.pad[1] - 1), null, leaveSld);
                    break;
                case 1:
                    THIS.fromHSV(x * (6 / (jscolor.images.pad[0] - 1)), null, 1 - y / (jscolor.images.pad[1] - 1), leaveSld);
                    break;
            }
        }


        function setSld(e) {
            var mpos = jscolor.getRelMousePos(e);
            var y = mpos.y - THIS.pickerFace - THIS.pickerInset;
            switch (modeID) {
                case 0:
                    THIS.fromHSV(null, null, 1 - y / (jscolor.images.sld[1] - 1), leavePad);
                    break;
                case 1:
                    THIS.fromHSV(null, 1 - y / (jscolor.images.sld[1] - 1), null, leavePad);
                    break;
            }
        }


        function dispatchImmediateChange() {
            if (THIS.onImmediateChange) {
                var callback;
                if (typeof THIS.onImmediateChange === 'string') {
                    callback = new Function(THIS.onImmediateChange);
                } else {
                    callback = THIS.onImmediateChange;
                }
                callback.call(THIS);
            }
        }


        var THIS = this;
        var modeID = this.pickerMode.toLowerCase() === 'hvs' ? 1 : 0;
        var abortBlur = false;
        var
                valueElement = jscolor.fetchElement(this.valueElement),
                styleElement = jscolor.fetchElement(this.styleElement);
        var
                holdPad = false,
                holdSld = false;
        var
                leaveValue = 1 << 0,
                leaveStyle = 1 << 1,
                leavePad = 1 << 2,
                leaveSld = 1 << 3;

        // target
        jscolor.addEvent(target, 'focus', function() {
            if (THIS.pickerOnfocus) {
                THIS.showPicker();
            }
        });
        jscolor.addEvent(target, 'blur', function() {
            if (!abortBlur) {
                window.setTimeout(function() {
                    abortBlur || blurTarget();
                    abortBlur = false;
                }, 0);
            } else {
                abortBlur = false;
            }
        });

        // valueElement
        if (valueElement) {
            var updateField = function() {
                THIS.fromString(valueElement.value, leaveValue);
                dispatchImmediateChange();
            };
            jscolor.addEvent(valueElement, 'keyup', updateField);
            jscolor.addEvent(valueElement, 'input', updateField);
            jscolor.addEvent(valueElement, 'blur', blurValue);
            valueElement.setAttribute('autocomplete', 'off');
        }

        // styleElement
        if (styleElement) {
            styleElement.jscStyle = {
                backgroundImage: styleElement.style.backgroundImage,
                backgroundColor: styleElement.style.backgroundColor,
                color: styleElement.style.color
            };
        }

        // require images
        switch (modeID) {
            case 0:
                jscolor.requireImage('hs.png');
                break;
            case 1:
                jscolor.requireImage('hv.png');
                break;
        }
        jscolor.requireImage('cross.gif');
        jscolor.requireImage('arrow.gif');

        this.importColor();
    }

};


jscolor.install();
