reblog machine keybind

http://reblog.machine.mamemomonga.com/js/ReblogMachine.js

$(window).keypress(function (b) {
  if (!b.ctrlKey && (b.which == 32 || 65 <= b.which && b.which <= 90 || 97 <= b.which && b.which <= 122)) {
    var b = String.fromCharCode(b.which),
      d;
    for (d in a.main_buttons_config) {
      var e = a.main_buttons_config[d];
      if (e.key == b || e.key.toUpperCase() == b) {
        $("#btns_navi_" + d).click();
        return
      }
    }
    b == "w" || b == "W" ? (d = $("#cb_tweet"), d.attr("checked") ? d.attr({
      checked: !1
    }) : d.attr({
      checked: !0
    }), a.model.save_tweet($("#cb_tweet").attr("checked"))) : (b == "q" || b == "Q") && $("#btn_wheelmode").click()
  }
});

ReblogMachine.settings.prototype = {
  btns_navi: {
    next: {
      key: "j",
      type: "navi",
      title: "\u6b21",
      colors: {
        normal: "#333333",
        click: "#FF0000",
        hold: "#0000FF"
      }
    },
    prev: {
      key: "k",
      type: "navi",
      title: "\u524d",
      colors: {
        normal: "#333333",
        click: "#FF0000",
        hold: "#0000FF"
      }
    },
    published: {
      key: "t",
      type: "post",
      title: "\u516c\u958b",
      colors: {
        normal: "#333333",
        click: "#FF0000",
        hold: "#0000FF"
      }
    },
    like: {
      key: "l",
      type: "like",
      title: "\u597d\u304d!",
      colors: {
        normal: "#333333",
        click: "#FF0000",
        hold: "#0000FF"
      }
    },
    more: {
      key: "m",
      type: "more",
      title: "\u3055\u3089\u306b\u6f5c\u308b",
      colors: {
        normal: "#006600",
        click: "#FF0000",
        hold: "#0000FF"
      }
    }
  },
  btns_navi_height: {
    small: 40,
    large: 74
  },
  post_types: "any,photo,quote,text,link,video,audio".split(","),
  btns_types: {
    colors: {
      normal: "#333333",
      click: "#FF0000",
      hold: "#660000"
    }
  },
  btn_wheelmode: {
    colors: {
      normal: "#333333",
      click: "#FF0000",
      hold: "#660000"
    }
  }
};

ReblogMachine.controller = function () {
  var a = this;
  a.currentType = "";
  a.settings = new ReblogMachine.settings;
  a.main_buttons_config = a.settings.btns_navi;
//...snip...