function RemoveArray(array, attachId) {
for (var i = 0,n = 0; i < array.length; i++) {
if (array[i] != attachId) {
array[n++] = array[i]
}
}
array.length -= 1;
}
Array.prototype.remove = function (obj) {
return RemoveArray(this, obj);
};
Array.prototype.removeAll = function() {
this.length = 0;
}