JS Randon F

function RandomFunction(MaxValue, MinValue) {
        return Math.round(Math.random() * (MaxValue - MinValue) + MinValue);
    }
    function onGameModeShuffle() {
        var ImgAll = $(Source).children();
        var ImgThis = $(Source + " div:first-child");
        var ImgArr = new Array();

        for (let i = 0; i < ImgAll.length; i++) {
            ImgArr[i] = $("#" + ImgThis.attr("id") + " img").attr("src");
            ImgThis = ImgThis.next();
        }
        ImgThis = $(Source + " div:first-child");
        for (let z = 0; z < ImgAll.length; z++) {
            let RandomNumber = RandomFunction(0, ImgArr.length - 1);
            $("#" + ImgThis.attr("id") + " img").attr("src", ImgArr[RandomNumber]);
            ImgArr.splice(RandomNumber, 1);
            ImgThis = ImgThis.next();
        }
    }