Simple script to go through your Kindle list of documents and delete stuff.

kindle-delete

(function () {
    'use strict';
    var todelete = [],
        a = document.getElementsByClassName('rowHeaderCollapsed'),
        i = 0,
        name = "",
        key = "";

    for (i = 0; i < a.length; i = i + 1) {
        name = ((a[i]).getElementsByClassName('headerTitle')[0]).textContent;
        key = (a[i]).getElementsByTagName('input')[1].value;
        if (window.confirm("Do you want to delete " + name + " ?")) {
            todelete.push(key);
        }
    }
    if (window.confirm("Final Confirmation before deleting. Press cancel if you screwed up somewhere.")) {
        todelete.forEach(function (a) {
            Fion.deleteItem("deleteItem_" + a);
        });
    }
}());