function RandomArray(arr)
{
    var arrayLength = arr.length;
    var tmpArray1 = new Array();
    for(var i = 0; i < arrayLength; i++)
    {
        tmpArray1[i] = i;
    }
    var tmpArray2 = new Array();
    for(var i = 0; i < arrayLength; i++)
    {
        tmpArray2[i] = tmpArray1.splice(Math.floor(Math.random() * tmpArray1.length), 1);
		
    }
    var randomArray = new Array();
    for(var i = 0; i < arrayLength; i ++)
    {
        randomArray[i] = arr[tmpArray2[i]];
    }
	arr=randomArray;
    return arr;
}