d3.permute = function(array, indexes) {
var permutes = [], i = -1, n = indexes.length; while (++i < n) permutes[i] = array[indexes[i]]; return permutes;
};
d3.permute = function(array, indexes) {
var permutes = [], i = -1, n = indexes.length; while (++i < n) permutes[i] = array[indexes[i]]; return permutes;
};