javascript unique random number generator

/**
 * this takes in a number and returns
 * an array of unique random numbers
 * starting from o to the amount given.
 * @param {number} amount this is the range and the amount of random numbers
 * @returns {Array} unique random numbers between 0 and amount
 */
function uniquRand(amount) {
    var uRandA = [];
    var random = 0;
    var temp = 0;

    for (var i = 0; i < amount; i++) {
        uRandA.push(i);
    }

    for (var c = 0; c < uRandA.length; c++) {
        random = Math.floor(Math.random() * amount);

        temp = uRandA[c];
        uRandA[c] = uRandA[random];
        uRandA[random] = temp;
    }
    return uRandA;
}