function fSelectSort(arr){
    var len=arr.length,temp=0;
    for(var i=0;i<len-2;i++){
        var min = arr[i],index=i;
        //find min element
        for(var j=i+1;j<len-1;j++){
            if(min > arr[j]){
                min = arr[j];
                index = j;
            }
        }
        //swap
        if(index != i){
            temp = arr[i];
            arr[i] = min;
            arr[index] = temp;
        }
    }
}