/**
* jQuery Plugin colorBlend v1.4.0
* Requires jQuery 1.2.1+ (Not tested with earlier versions).
* Based on the Fade plugin http://plugins.jquery.com/project/fade
* Code losely based on the Cycle plugin http://plugins.jquery.com/project/cycle It was a great resource in creating this one) 
* Copyright (c) 2007-2008 Aaron E. [jquery at happinessinmycheeks dot com] 
* 
*	@param: Object Array. Arguments need to be in object notation.
*	Returns: jQuery.
*	Options:	
*		param:		What css color option you wish to fade. 
*					Such as "background-color", "color", "boarder-color", "scrollbar-face-color" etc.
*					(default: "background-color).
*		fps:		Frames per second (default: 30).
*		cycles:		How many times you want the object to fade. 0 = Infinite. (default: 0).
*		random:		Will transition from a random color to a random color. (default: false).
*					Note: Will change isFade to false.
*		isFade:		Will fade from the original color and back to the original color. (default: true).
*					Note: Cannont set to true if random is set to true.
*		fromColor:	Starting color. accepts RGB, Hex, Name values. (default: "current").
*					Will be overwritten if random is set to true. Also accepts "random" as an option.
*		toColor:	Ending color. Same as above (default: "opposite").
*		alpha:		Opacity of element! accepts a comma delimited string. Such as "0,100" or "100,40" also now accepts single string to just set the opacity.
*
*	Examples: 
*		$("body").colorBlend([{fromColor:"black", toColor:"white", param:"color"}]);
*		var myColors = [
*			{param:'color', fromColor:"white", toColor:"black"},
*			{param:'background-color', random: true, alpha:"20,75"},
*			{param:'border-left-color', fromColor:"random", toColor:"black"},
*			{param:'border-right-color', fromColor:"white", toColor:"black"},
*			{param:'border-top-color', fromColor:"white", toColor:"black"},
*			{param:'border-bottom-color', fromColor:"white", toColor:"tomato"}
*		];
*		$("tr").colorBlend(myColors);
*
*	Notes: If used on a lot of objects it can cause major browser slowdown and it will eat a lot of cpu. 
*
*	Additions:
*		1.0.2
*			* Added "parent" as a valid color value. Will check parents until valid color is found. 
*				defaults to white if there are no parents with color.
*		1.0.3
*			* Added Alpha/Opacity blending! Add alpha:"0,100" to list of parameters. 
*				Note: Will change the opacity of element only, not the property!
*				If you only want text to appear and dissapear, you'll have to put it in it's own element, otherise the whole
*				element will fade, not just your text.
*		1.0.4
*			* Alpha will now take just one argument alpha:"30" if you want to just change the alpha and not have it animate. 
*			* Current is now the default fromColor value. The current value will get the current color of the element. If current is transparent, it will get the parent color.
*			* Opposite is now the default toColor value.
*
*		1.3.0
*			* Added Queueing ability, so an animation will take arguments and process them once they are available. 
*			* Added Action parameter available arguments are stop, pause, and resume. Resume continues a paused animation. Where stop lets you assign a whole new animation to the element.
*			* Added isQueue as an option allows you to decide if you want an option to be queued or not
*
*		1.4.0
*			* Added pause all, stop all, resume all.
*			* Have objects stored in an non-named array for traversing.
*
*	Bugs fixed:
*		1.0.1 
*			* Undesired flickering effect if colorBlend was called multiple times on the same css parameter.
*		1.0.2 
*			* Noticed element would keep color attributes in certain circumstances.
*		1.0.4
*			* Fixed bug where under certain conditions the color would flicker. 
*		1.0.5
*			* Great find by cratchit and he supplied the fix. Can now call colorBlend without any options. 
*		1.2.0
*			* Flicker fix in 1.0.4 caused other issues. Fixed for good. 
*			* Found that if you try to get current color from scroll bar, it blows up. Added check for undefined as a color. Defaults to white.
*		1.3.0
*			* Found MORE flickering issues, and fixed them. I guess it's not over until the fat lady sings. Didn't see any more flicking, but I don't hear a fat lady.
*/

(function($) {
    var ver = '1.4.0';
    var gObj = [];

    $.fn.colorBlend = function(opts) {
        if (!opts) { opts = [{}]; }

        var arrySelected = [];
        this.each(function() {
            arrySelected[arrySelected.length] = $.data($(this).get(0));
        });

        return this.each(function() {
            var uId = $.data($(this).get(0));
            var $cont = $(this);
            var isFlagAll = false;

            if (udf(gObj[uId])) {
                gObj[uId] = [];
            }

            $.each(opts, function(i, v) {
                var isFound = false;
                opts[i] = $.extend({}, $.fn.colorBlend.defaults, opts[i]);
                opts[i].queue = [];
                opts[i].internals = $.extend({}, $.fn.colorBlend.internals);
                opts[i].parent = $cont;

                if (opts[i].param == "all") {
                    isFlagAll = FlagAll(opts[i].action);
                }

                $.each(gObj[uId], function(j, w) {
                    if (gObj[uId][j].param == opts[i].param) {
                        if (!gObj[uId][j].internals.animating) {
                            gObj[uId].splice(j, 1, setOptions(opts[i]));
                        }
                        isFound = true;
                        return false;
                    }
                });

                if (!isFound) {
                    gObj[uId].push(setOptions(opts[i]));
                }
            });

            if (!isFlagAll) {
                $.each(gObj[uId], function(i, v) {
                    var ani = gObj[uId][i].internals.animating;
                    var isStopped = false;
                    $.each(opts, function(j, w) {
                        if (gObj[uId][i].param != opts[j].param) {
                            return true;
                        }

                        switch (opts[j].action) {
                            case "stop":
                            case "pause":
                                clearTimeout(gObj[uId][i].internals.tId);
                                if (opts[j].action == "stop") {
                                    isStopped = true;
                                    gObj[uId][i].internals.animating = false;
                                }
                                break;
                            case "resume":
                                go(gObj[uId][i]);
                                ani = true;
                                break;
                            default:
                                if (!ani) {
                                    gObj[uId][i] = setOptions(opts[j]);
                                } else {
                                    if (gObj[uId][i].isQueue && gObj[uId][i].cycles > 0) {
                                        gObj[uId][i].queue.push(setOptions(opts[j]));
                                    }
                                }
                                break;
                        }
                    });

                    if (!ani && !isStopped) {
                        go(gObj[uId][i]);
                    }
                });
            }
        });

        function FlagAll(action) {
            var res = false;
            $.each(arrySelected, function(i, v) {
                var curObj = gObj[v];
                $.each(curObj, function(j, w) {
                    switch (action) {
                        case "stop":
                        case "pause":
                            res = true;
                            clearTimeout(curObj[j].internals.tId);
                            if (action == "stop") {
                                curObj[j].internals.animating = false;
                            }
                            break;
                        case "resume":
                            res = true;
                            go(curObj[j]);
                            break;
                    }
                });
            });

            return res;
        }
    };

    $.fn.colorBlend.defaults = {
        fps: 30,
        duration: 1000,
        param: "background-color",
        cycles: 0,
        random: false,
        isFade: true,
        fromColor: "current",
        toColor: "opposite",
        alpha: "100,100",
        action: "",
        isQueue: true
    };

    $.fn.colorBlend.internals = {
        aniArray: [],
        alphaArry: [],
        pos: 0,
        currentCycle: 0,
        direction: 1,
        frames: 0,
        delay: 0,
        fromRand: false,
        toRand: false,
        animating: false,
        isAlpha: false,
        tId: 0
    }

    function setOptions(Opts) {
        var alphaParam = Opts.alpha.split(",");

        switch (Opts.fromColor.toLowerCase()) {
            case "current":
                Opts.fromColor = Opts.parent.css(Opts.param);
                break;
            case "parent":
            case "transparent":
                Opts.fromColor = checkParentColor(Opts.parent, Opts.param);
                break;
            case "opposite":
                Opts.fromColor = OppositeColor(Opts.toColor);
                break;
            case "random":
                Opts.fromColor = rndColor();
                Opts.internals.fromRand = true;
                break;
        }

        switch (Opts.toColor.toLowerCase()) {
            case "current":
                Opts.toColor = Opts.parent.css(Opts.param);
                break;
            case "parent":
            case "transparent":
                Opts.toColor = checkParentColor(Opts.parent, Opts.param);
                break;
            case "opposite":
                Opts.toColor = OppositeColor(Opts.fromColor);
                break;
            case "random":
                Opts.toColor = rndColor();
                Opts.internals.toRand = true;
                break;
        }

        Opts.internals.currentCycle = Opts.cycles > 0 ? Opts.cycles : 0;
        Opts.internals.frames = Math.floor(Opts.fps * (Opts.duration / 1000));
        Opts.internals.delay = Math.floor(Opts.duration / (Opts.internals.frames + 1));

        if (Opts.random) {
            Opts.isFade = false;
            Opts.fromColor = rndColor();
            Opts.toColor = rndColor();
        }

        if (Opts.isFade) {
            Opts.internals.currentCycle = Opts.internals.currentCycle * 2;
            Opts.internals.delay = Math.floor(Opts.internals.delay / 2);
            Opts.internals.frames = Math.floor(Opts.internals.frames / 2);
        }

        if ((alphaParam.length == 1 && alphaParam[0] != 100)
		|| (alphaParam.length == 2 && (alphaParam[0] != 100 || alphaParam[1] != 100))) {
            /*
            Width and height are required for IE opacity to work, 
            tables with padding/borders/spacing cause some effed 
            up things to happen when you change width/height. 
            Check for clientWidth/Height if undefined, set width from jquery.
            */
            var obj = Opts.parent.get()[0];
            var wdth = Opts.parent.width();
            var higt = Opts.parent.height();
            wdth = udf(obj.clientWidth) ? wdth : obj.clientWidth;
            higt = udf(obj.clientHeight) ? higt : obj.clientHeight;

            if (alphaParam.length == 2) {
                Opts.parent.width(wdth + "px");
                Opts.parent.height(higt + "px");

                if (parseInt(alphaParam[0]) != parseInt(alphaParam[1])) {
                    Opts.internals.isAlpha = true;
                    Opts.internals.alphaArry = buildAlphaAni(alphaParam[0], alphaParam[1], Opts.internals);
                } else {
                    setAlpha(Opts.parent, alphaParam[0]);
                }
            } else {
                if (parseInt(alphaParam[0])) {
                    Opts.parent.width(wdth + "px");
                    Opts.parent.height(higt + "px");
                    setAlpha(Opts.parent, alphaParam[0]);
                }
            }
        }

        Opts.internals.aniArray = buildAnimation(Opts.fromColor, Opts.toColor, Opts.internals);
        return Opts;
    }

    function go(Opts) {
        var sendStop = false;

        Opts.internals.animating = true;

        if (Opts.fromColor != Opts.toColor) {
            Opts.parent.css(Opts.param, Opts.internals.aniArray[Opts.internals.pos]);
        }

        if (Opts.internals.isAlpha) {
            setAlpha(Opts.parent, Opts.internals.alphaArry[Opts.internals.pos]);
        }

        Opts.internals.pos += Opts.internals.direction;

        if (Opts.internals.pos < 0 || Opts.internals.pos >= Opts.internals.aniArray.length) {
            Opts.internals.currentCycle -= Opts.internals.currentCycle != 0 ? 1 : 0;
            Opts.internals.direction = Opts.internals.direction * -1;
            Opts.internals.pos += Opts.internals.direction;

            if (Opts.random) {
                Opts.fromColor = Opts.toColor;
                Opts.toColor = rndColor();
                Opts.internals.aniArray = buildAnimation(Opts.fromColor, Opts.toColor, Opts.internals);
            }

            if (!Opts.isFade) {
                Opts.internals.direction = 1;
                Opts.internals.pos = 0;
            }

            if (Opts.internals.currentCycle == 0 && Opts.cycles > 0) {
                sendStop = true;
            }
        }

        if (!sendStop) {
            Opts.internals.tId = setTimeout(function() { go(Opts); }, Opts.internals.delay);
        } else {
            Opts.internals.animating = false;
            clearTimeout(Opts.internals.tId);
            if (Opts.isQueue && Opts.queue.length > 0) {
                var tmp = Opts.queue.concat();
                tmp.splice(0, 1);
                Opts = $.extend(Opts, Opts.queue.shift());
                Opts.queue = tmp.concat();
                Opts.internals.tId = setTimeout(function() { go(Opts); }, Opts.internals.delay);
            }
        }
    }

    function setAlpha(elm, opacity) {
        if ($.browser.msie) {
            elm.css("filter", "alpha(opacity=" + opacity + ")");
        } else {
            elm.css("-moz-opacity", parseFloat(opacity / 100));
            elm.css("opacity", parseFloat(opacity / 100));
        }
    }

    function buildAlphaAni(startOpacity, endOpacity, intOpts) {
        var frames = intOpts.frames;
        var frame = 0;
        var res = [];
        var h = 0;
        for (frame = 0; frame <= frames; frame++) {
            h = Math.floor(startOpacity * ((frames - frame) / frames) + endOpacity * (frame / frames));
            res[res.length] = h
        }

        if (h != endOpacity) {
            res[res.length] = parseInt(endOpacity);
        }

        return res;
    }

    function buildAnimation(startColor, endColor, intOpts) {
        var frames = intOpts.frames;
        var frame = 0;
        var r, g, b, h;
        var res = [];

        startColor = toHexColor(startColor);
        endColor = toHexColor(endColor);
        var fc = ColorHexToDec(startColor).split(', ');
        var tc = ColorHexToDec(endColor).split(', ');

        for (frame = 0; frame <= frames; frame++) {
            r = Math.floor(fc[0] * ((frames - frame) / frames) + tc[0] * (frame / frames));
            g = Math.floor(fc[1] * ((frames - frame) / frames) + tc[1] * (frame / frames));
            b = Math.floor(fc[2] * ((frames - frame) / frames) + tc[2] * (frame / frames));
            h = ColorDecToHex(r, g, b);
            res[res.length] = h;
        }

        if (h.toLowerCase() != endColor.toLowerCase()) {
            res[res.length] = endColor;
        }

        return res;
    }

    function getHexColorByName(colorName) {
        return allColorsByName()[colorName.toLowerCase()];
    }

    function allColorsByName() {
        var colors = [];
        colors["aliceblue"] = "F0F8FF"; colors["antiquewhite"] = "FAEBD7"; colors["aqua"] = "00FFFF"; colors["aquamarine"] = "7FFFD4";
        colors["azure"] = "F0FFFF"; colors["beige"] = "F5F5DC"; colors["bisque"] = "FFE4C4"; colors["black"] = "000000";
        colors["blanchedalmond"] = "FFEBCD"; colors["blue"] = "0000FF"; colors["blueviolet"] = "8A2BE2"; colors["brown"] = "A52A2A";
        colors["burlywood"] = "DEB887"; colors["cadetblue"] = "5F9EA0"; colors["chartreuse"] = "7FFF00"; colors["chocolate"] = "D2691E";
        colors["coral"] = "FF7F50"; colors["cornflowerblue"] = "6495ED"; colors["cornsilk"] = "FFF8DC"; colors["crimson"] = "DC143C";
        colors["cyan"] = "00FFFF"; colors["darkblue"] = "00008B"; colors["darkcyan"] = "008B8B"; colors["darkgoldenrod"] = "B8860B";
        colors["darkgray"] = "A9A9A9"; colors["darkgreen"] = "006400"; colors["darkkhaki"] = "BDB76B"; colors["darkmagenta"] = "8B008B";
        colors["darkolivegreen"] = "556B2F"; colors["darkorange"] = "FF8C00"; colors["darkorchid"] = "9932CC"; colors["darkred"] = "8B0000";
        colors["darksalmon"] = "E9967A"; colors["darkseagreen"] = "8FBC8F"; colors["darkslateblue"] = "483D8B"; colors["darkslategray"] = "2F4F4F";
        colors["darkturquoise"] = "00CED1"; colors["darkviolet"] = "9400D3"; colors["deeppink"] = "FF1493"; colors["deepskyblue"] = "00BFFF";
        colors["dimgray"] = "696969"; colors["dodgerblue"] = "1E90FF"; colors["firebrick"] = "B22222"; colors["floralwhite"] = "FFFAF0";
        colors["forestgreen"] = "228B22"; colors["fuchsia"] = "FF00FF"; colors["gainsboro"] = "DCDCDC"; colors["ghostwhite"] = "F8F8FF";
        colors["gold"] = "FFD700"; colors["goldenrod"] = "DAA520"; colors["gray"] = "808080"; colors["green"] = "008000";
        colors["greenyellow"] = "ADFF2F"; colors["honeydew"] = "F0FFF0"; colors["hotpink"] = "FF69B4"; colors["indianred"] = "CD5C5C";
        colors["indigo"] = "4B0082"; colors["ivory"] = "FFFFF0"; colors["khaki"] = "F0E68C"; colors["lavender"] = "E6E6FA";
        colors["lavenderblush"] = "FFF0F5"; colors["lawngreen"] = "7CFC00"; colors["lemonchiffon"] = "FFFACD"; colors["lightblue"] = "ADD8E6";
        colors["lightcoral"] = "F08080"; colors["lightcyan"] = "E0FFFF"; colors["lightgoldenrodyellow"] = "FAFAD2"; colors["lightgreen"] = "90EE90";
        colors["lightgrey"] = "D3D3D3"; colors["lightpink"] = "FFB6C1"; colors["lightsalmon"] = "FFA07A"; colors["lightseagreen"] = "20B2AA";
        colors["lightskyblue"] = "87CEFA"; colors["lightslategray"] = "778899"; colors["lightsteelblue"] = "B0C4DE"; colors["lightyellow"] = "FFFFE0";
        colors["lime"] = "00FF00"; colors["limegreen"] = "32CD32"; colors["linen"] = "FAF0E6"; colors["magenta"] = "FF00FF";
        colors["maroon"] = "800000"; colors["mediumaquamarine"] = "66CDAA"; colors["mediumblue"] = "0000CD"; colors["mediumorchid"] = "BA55D3";
        colors["mediumpurple"] = "9370DB"; colors["mediumseagreen"] = "3CB371"; colors["mediumslateblue"] = "7B68EE"; colors["mediumspringgreen"] = "00FA9A";
        colors["mediumturquoise"] = "48D1CC"; colors["mediumvioletred"] = "C71585"; colors["midnightblue"] = "191970"; colors["mintcream"] = "F5FFFA";
        colors["mistyrose"] = "FFE4E1"; colors["moccasin"] = "FFE4B5"; colors["navajowhite"] = "FFDEAD"; colors["navy"] = "000080";
        colors["oldlace"] = "FDF5E6"; colors["olive"] = "808000"; colors["olivedrab"] = "6B8E23"; colors["orange"] = "FFA500";
        colors["orangered"] = "FF4500"; colors["orchid"] = "DA70D6"; colors["palegoldenrod"] = "EEE8AA"; colors["palegreen"] = "98FB98";
        colors["paleturquoise"] = "AFEEEE"; colors["palevioletred"] = "DB7093"; colors["papayawhip"] = "FFEFD5"; colors["peachpuff"] = "FFDAB9";
        colors["peru"] = "CD853F"; colors["pink"] = "FFC0CB"; colors["plum"] = "DDA0DD"; colors["powderblue"] = "B0E0E6";
        colors["purple"] = "800080"; colors["red"] = "FF0000"; colors["rosybrown"] = "BC8F8F"; colors["royalblue"] = "4169E1";
        colors["saddlebrown"] = "8B4513"; colors["salmon"] = "FA8072"; colors["sandybrown"] = "F4A460"; colors["seagreen"] = "2E8B57";
        colors["seashell"] = "FFF5EE"; colors["sienna"] = "A0522D"; colors["silver"] = "C0C0C0"; colors["skyblue"] = "87CEEB";
        colors["slateblue"] = "6A5ACD"; colors["slategray"] = "708090"; colors["snow"] = "FFFAFA"; colors["springgreen"] = "00FF7F";
        colors["steelblue"] = "4682B4"; colors["tan"] = "D2B48C"; colors["teal"] = "008080"; colors["thistle"] = "D8BFD8";
        colors["tomato"] = "FF6347"; colors["turquoise"] = "40E0D0"; colors["violet"] = "EE82EE"; colors["wheat"] = "F5DEB3";
        colors["white"] = "FFFFFF"; colors["whitesmoke"] = "F5F5F5"; colors["yellow"] = "FFFF00"; colors["yellowgreen"] = "9ACD32";
        return colors;
    }

    function OppositeColor(value) {
        value = toHexColor(value).split("#").join('').split('');
        var hexVals = "0123456789ABCDEF";
        var revHexs = hexVals.split('').reverse().join('');
        var currentPos;
        for (var i = 0; i < value.length; i++) {
            currentPos = hexVals.indexOf(value[i]);
            value[i] = revHexs.substring(currentPos, currentPos + 1);
        }

        return "#" + value.join('');
    }

    function ColorDecToHex(r, g, b) {
        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 "#" + r + g + b;
    }

    function ColorHexToDec(value) {
        var res = [];
        value = value.replace("#", "");
        for (var i = 0; i < 3; i++) {
            res[res.length] = parseInt(value.substr(i * 2, 2), 16);
        }
        return res.join(', ');
    }

    function toHexColor(value) {
        value = udf(value) ? "#FFFFFF" : value;
        if (value.indexOf("rgb(") > -1) {
            value = value.replace("rgb(", "").replace(")", "");
            value = eval('ColorDecToHex(' + value + ')');
        } else {
            if (value.indexOf("#") > -1) {
                value = value.replace("#", "");
                if (value.length == 3) {
                    var s = value.split('');
                    $.each(s, function(i) {
                        s[i] = s[i] + s[i];
                    });
                    value = s.join('');
                }
            } else {
                var colName = getHexColorByName(value);
                value = !udf(colName) ? colName : "black";
            }
        }

        return "#" + value.toUpperCase().split('#').join('');
    }

    function checkParentColor(elm, param) {
        /*White is chosen as default to eliminate issues between IE and FF*/
        var pColr = "#ffffff";

        $(elm).parents().each(function() {
            var result = $(this).css(param);
            if (result != 'transparent') {
                pColr = result;
                return false;
            }
        });

        return pColr;
    }

    function rndColor() {
        var res = [];
        var cm;
        for (var i = 0; i < 3; i++) {
            cm = randRange(0, 255).toString(16);
            if (cm.length == 1) cm = '0' + cm;
            res[res.length] = cm;
        }
        return "#" + res.join('');
    }

    function randRange(lowVal, highVal) {
        return Math.floor(Math.random() * (highVal - lowVal + 1)) + lowVal;
    }

    function rndId() {
        var result = [];
        for (var i = 0; i < 10; i++) {
            result[result.length] = randRange(0, 9);
        }
        return result.join('');
    }

    function udf(val) {
        return typeof (val) == 'undefined' ? true : false;
    }
})(jQuery);