SharePoint: colorize the calendar view on SP2010 (JS)

<script type="text/javascript">
if(typeof acme === "undefined"){
    acme = {};
}

if(typeof acme.CAL === "undefined"){
    acme.CAL = {};
}

acme.CAL.Initialize = function(){
    SP.UI.ApplicationPages.CalendarService.prototype.$7a_1_OLD__ = SP.UI.ApplicationPages.CalendarService.prototype.$7a_1;

    SP.UI.ApplicationPages.CalendarService.prototype.$7a_1 = function($p0, $p1) {
        this.$7a_1_OLD__($p0, $p1);
        window.setTimeout(acme.CAL.Colorize, 100);
    };
};

acme.CAL.Colorize = function(){
    $("div.ms-acal-rootdiv").find("div.ms-acal-item").each(function(index){
        var self = this;
        var title = $(self).attr("title");
        var colors = acme.CAL.GetColors(title);

        $(self).css("background-color",colors.BGColor);

        $(self).find("div").each(function(index){
            $(this).css('color', '');
            var style = $(this).attr("style");
            var newStyle = "color: " + colors.FGColor + " !important; " + (style || "");
            $(this).attr("style", newStyle);
        });

        $(self).find("a").each(function(index){
            $(this).css('color', '');
            var style = $(this).attr("style");
            var newStyle = "color: " + colors.FGColor + " !important; " + (style || "");
            $(this).attr("style", newStyle);
        });
    });
};

acme.CAL.GetColors = function(title){
    var allColors = [
        { "BGColor": "red", "FGColor": "yellow" },
        { "BGColor": "pink", "FGColor": "darkred" },
        { "BGColor": "yellow", "FGColor": "red" },
        { "BGColor": "green", "FGColor": "white" },
        { "BGColor": "blue", "FGColor": "yellow" },
        { "BGColor": "orange", "FGColor": "darkred" },
        { "BGColor": "black", "FGColor": "white" },
        { "BGColor": "darkred", "FGColor": "yellow" },
        { "BGColor": "darkgray", "FGColor": "yellow" },
        { "BGColor": "aqua", "FGColor": "darkred" },
        { "BGColor": "fuchsia", "FGColor": "white" },
        { "BGColor": "cyan", "FGColor": "white" },
        { "BGColor": "magenta", "FGColor": "white" }
    ];

    var CurrentColorId = 0;
    var patt = /^\s*(\d{1,2}):\d{1,2}\s*[ap]m/i;
    if(patt.test(title)){
        var mm = title.match(patt)[1];
        CurrentColorId = Number(mm);
    }

    var len = allColors.length;
    var color = allColors[CurrentColorId % len];
    return color;
};

ExecuteOrDelayUntilScriptLoaded(acme.CAL.Initialize, "SP.UI.ApplicationPages.Calendar.js");
</script>