function CArray(numElements) {
    this.dataStore = [];
    this.pos = 0;
    this.numElements = numElements;
    this.insert = insert;
    this.toString = toString;
    this.clear = clear;
    this.setData = setData;
    this.swap = swap;

    this.insertionSort = insertionSort;

    for (var i = 0; i < numElements; ++i) {
        this.dataStore[i] = i;
    }
}

function setData() {
    for (var i = 0; i < this.numElements; ++i) {
        this.dataStore[i] = Math.floor(Math.random() * (this.numElements + 1));
    }
}

function clear() {
    for (var i = 0; i < this.dataStore.length; ++i) {
        this.dataStore[i] = 0;
    }
}

function insert(element) {
    this.dataStore[this.pos++] = element;
}

function toString() {
    var retstr = "";
    for (var i = 0; i < this.dataStore.length; ++i) {
        retstr += this.dataStore[i] + " ";
        if (i > 0 && i % 10 == 0) {
            retstr += "\n";
        }
    }
    return retstr;
}

function swap(arr, index1, index2) {
    var temp = arr[index1];
    arr[index1] = arr[index2];
    arr[index2] = temp;
}

function insertionSort() {
    var temp, inner;
    for (var outer = 1; outer <= this.dataStore.length - 1; ++outer) {
        temp = this.dataStore[outer];
        inner = outer;
        while (inner > 0 && (this.dataStore[inner-1] >= temp)) {
            this.dataStore[inner] = this.dataStore[inner-1];
            --inner;
        }
        this.dataStore[inner] = temp;
    }
    console.log(this.toString());
}