whole_func_string: function () {
  
              var selector = ".select2-choices", selection;
  
              this.searchContainer = this.container.find(".select2-search-field");
              this.selection = selection = this.container.find(selector);
  
              var _this = this;
              this.selection.on("mousedown", ".select2-search-choice", function (e) {
                  //killEvent(e);
                  _this.search[0].focus();
                  _this.selectChoice($(this));
              })
  
              // rewrite labels from original element to focusser
              this.search.attr("id", "s2id_autogen"+nextUid());
              $("label[for='" + this.opts.element.attr("id") + "']")
                  .attr('for', this.search.attr('id'));
  
              this.search.on("input paste", this.bind(function() {
                  if (!this.isInterfaceEnabled()) return;
                  if (!this.opened()) {
                      this.open();
                  }
              }));
  
              this.search.attr("tabindex", this.elementTabIndex);
  
              this.keydowns = 0;
              this.search.on("keydown", this.bind(function (e) {
                  if (!this.isInterfaceEnabled()) return;
  
                  ++this.keydowns;
                  var selected = selection.find(".select2-search-choice-focus");
                  var prev = selected.prev(".select2-search-choice:not(.select2-locked)");
                  var next = selected.next(".select2-search-choice:not(.select2-locked)");
                  var pos = getCursorInfo(this.search);
  
                  if (selected.length &&
                      (e.which == KEY.LEFT || e.which == KEY.RIGHT || e.which == KEY.BACKSPACE || e.which == KEY.DELETE || e.which == KEY.ENTER)) {
                      var selectedChoice = selected;
                      if (e.which == KEY.LEFT && prev.length) {
                          selectedChoice = prev;
                      }
                      else if (e.which == KEY.RIGHT) {
                          selectedChoice = next.length ? next : null;
                      }
                      else if (e.which === KEY.BACKSPACE) {
                          this.unselect(selected.first());
                          this.search.width(10);
                          selectedChoice = prev.length ? prev : next;
                      } else if (e.which == KEY.DELETE) {
                          this.unselect(selected.first());
                          this.search.width(10);
                          selectedChoice = next.length ? next : null;
                      } else if (e.which == KEY.ENTER) {
                          selectedChoice = null;
                      }
  
                      this.selectChoice(selectedChoice);
                      killEvent(e);
                      if (!selectedChoice || !selectedChoice.length) {
                          this.open();
                      }
                      return;
                  } else if (((e.which === KEY.BACKSPACE && this.keydowns == 1)
                      || e.which == KEY.LEFT) && (pos.offset == 0 && !pos.length)) {
  
                      this.selectChoice(selection.find(".select2-search-choice:not(.select2-locked)").last());
                      killEvent(e);
                      return;
                  } else {
                      this.selectChoice(null);
                  }
  
                  if (this.opened()) {
                      switch (e.which) {
                      case KEY.UP:
                      case KEY.DOWN:
                          this.moveHighlight((e.which === KEY.UP) ? -1 : 1);
                          killEvent(e);
                          return;
                      case KEY.ENTER:
                          this.selectHighlighted();
                          killEvent(e);
                          return;
                      case KEY.TAB:
                          this.selectHighlighted({noFocus:true});
                          this.close();
                          return;
                      case KEY.ESC:
                          this.cancel(e);
                          killEvent(e);
                          return;
                      }
                  }
  
                  if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e)
                   || e.which === KEY.BACKSPACE || e.which === KEY.ESC) {
                      return;
                  }
  
                  if (e.which === KEY.ENTER) {
                      if (this.opts.openOnEnter === false) {
                          return;
                      } else if (e.altKey || e.ctrlKey || e.shiftKey || e.metaKey) {
                          return;
                      }
                  }
  
                  this.open();
  
                  if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
                      // prevent the page from scrolling
                      killEvent(e);
                  }
  
                  if (e.which === KEY.ENTER) {
                      // prevent form from being submitted
                      killEvent(e);
                  }
  
              }));
  
              this.search.on("keyup", this.bind(function (e) {
                  this.keydowns = 0;
                  this.resizeSearch();
              })
              );
  
              this.search.on("blur", this.bind(function(e) {
                  this.container.removeClass("select2-container-active");
                  this.search.removeClass("select2-focused");
                  this.selectChoice(null);
                  if (!this.opened()) this.clearSearch();
                  e.stopImmediatePropagation();
                  this.opts.element.trigger($.Event("select2-blur"));
              }));
  
              this.container.on("click", selector, this.bind(function (e) {
                  if (!this.isInterfaceEnabled()) return;
                  if ($(e.target).closest(".select2-search-choice").length > 0) {
                      // clicked inside a select2 search choice, do not open
                      return;
                  }
                  this.selectChoice(null);
                  this.clearPlaceholder();
                  if (!this.container.hasClass("select2-container-active")) {
                      this.opts.element.trigger($.Event("select2-focus"));
                  }
                  this.open();
                  this.focusSearch();
                  e.preventDefault();
              }));
  
              this.container.on("focus", selector, this.bind(function () {
                  if (!this.isInterfaceEnabled()) return;
                  if (!this.container.hasClass("select2-container-active")) {
                      this.opts.element.trigger($.Event("select2-focus"));
                  }
                  this.container.addClass("select2-container-active");
                  this.dropdown.addClass("select2-drop-active");
                  this.clearPlaceholder();
              }));
  
              this.initContainerWidth();
              this.opts.element.addClass("select2-offscreen");
  
              // set the placeholder if necessary
              this.clearSearch();
          }
func_code_string: function () {
  
              var selector = ".select2-choices", selection;
  
              this.searchContainer = this.container.find(".select2-search-field");
              this.selection = selection = this.container.find(selector);
  
              var _this = this;
              this.selection.on("mousedown", ".select2-search-choice", function (e) {
                  //killEvent(e);
                  _this.search[0].focus();
                  _this.selectChoice($(this));
              })
  
              // rewrite labels from original element to focusser
              this.search.attr("id", "s2id_autogen"+nextUid());
              $("label[for='" + this.opts.element.attr("id") + "']")
                  .attr('for', this.search.attr('id'));
  
              this.search.on("input paste", this.bind(function() {
                  if (!this.isInterfaceEnabled()) return;
                  if (!this.opened()) {
                      this.open();
                  }
              }));
  
              this.search.attr("tabindex", this.elementTabIndex);
  
              this.keydowns = 0;
              this.search.on("keydown", this.bind(function (e) {
                  if (!this.isInterfaceEnabled()) return;
  
                  ++this.keydowns;
                  var selected = selection.find(".select2-search-choice-focus");
                  var prev = selected.prev(".select2-search-choice:not(.select2-locked)");
                  var next = selected.next(".select2-search-choice:not(.select2-locked)");
                  var pos = getCursorInfo(this.search);
  
                  if (selected.length &&
                      (e.which == KEY.LEFT || e.which == KEY.RIGHT || e.which == KEY.BACKSPACE || e.which == KEY.DELETE || e.which == KEY.ENTER)) {
                      var selectedChoice = selected;
                      if (e.which == KEY.LEFT && prev.length) {
                          selectedChoice = prev;
                      }
                      else if (e.which == KEY.RIGHT) {
                          selectedChoice = next.length ? next : null;
                      }
                      else if (e.which === KEY.BACKSPACE) {
                          this.unselect(selected.first());
                          this.search.width(10);
                          selectedChoice = prev.length ? prev : next;
                      } else if (e.which == KEY.DELETE) {
                          this.unselect(selected.first());
                          this.search.width(10);
                          selectedChoice = next.length ? next : null;
                      } else if (e.which == KEY.ENTER) {
                          selectedChoice = null;
                      }
  
                      this.selectChoice(selectedChoice);
                      killEvent(e);
                      if (!selectedChoice || !selectedChoice.length) {
                          this.open();
                      }
                      return;
                  } else if (((e.which === KEY.BACKSPACE && this.keydowns == 1)
                      || e.which == KEY.LEFT) && (pos.offset == 0 && !pos.length)) {
  
                      this.selectChoice(selection.find(".select2-search-choice:not(.select2-locked)").last());
                      killEvent(e);
                      return;
                  } else {
                      this.selectChoice(null);
                  }
  
                  if (this.opened()) {
                      switch (e.which) {
                      case KEY.UP:
                      case KEY.DOWN:
                          this.moveHighlight((e.which === KEY.UP) ? -1 : 1);
                          killEvent(e);
                          return;
                      case KEY.ENTER:
                          this.selectHighlighted();
                          killEvent(e);
                          return;
                      case KEY.TAB:
                          this.selectHighlighted({noFocus:true});
                          this.close();
                          return;
                      case KEY.ESC:
                          this.cancel(e);
                          killEvent(e);
                          return;
                      }
                  }
  
                  if (e.which === KEY.TAB || KEY.isControl(e) || KEY.isFunctionKey(e)
                   || e.which === KEY.BACKSPACE || e.which === KEY.ESC) {
                      return;
                  }
  
                  if (e.which === KEY.ENTER) {
                      if (this.opts.openOnEnter === false) {
                          return;
                      } else if (e.altKey || e.ctrlKey || e.shiftKey || e.metaKey) {
                          return;
                      }
                  }
  
                  this.open();
  
                  if (e.which === KEY.PAGE_UP || e.which === KEY.PAGE_DOWN) {
                      // prevent the page from scrolling
                      killEvent(e);
                  }
  
                  if (e.which === KEY.ENTER) {
                      // prevent form from being submitted
                      killEvent(e);
                  }
  
              }));
  
              this.search.on("keyup", this.bind(function (e) {
                  this.keydowns = 0;
                  this.resizeSearch();
              })
              );
  
              this.search.on("blur", this.bind(function(e) {
                  this.container.removeClass("select2-container-active");
                  this.search.removeClass("select2-focused");
                  this.selectChoice(null);
                  if (!this.opened()) this.clearSearch();
                  e.stopImmediatePropagation();
                  this.opts.element.trigger($.Event("select2-blur"));
              }));
  
              this.container.on("click", selector, this.bind(function (e) {
                  if (!this.isInterfaceEnabled()) return;
                  if ($(e.target).closest(".select2-search-choice").length > 0) {
                      // clicked inside a select2 search choice, do not open
                      return;
                  }
                  this.selectChoice(null);
                  this.clearPlaceholder();
                  if (!this.container.hasClass("select2-container-active")) {
                      this.opts.element.trigger($.Event("select2-focus"));
                  }
                  this.open();
                  this.focusSearch();
                  e.preventDefault();
              }));
  
              this.container.on("focus", selector, this.bind(function () {
                  if (!this.isInterfaceEnabled()) return;
                  if (!this.container.hasClass("select2-container-active")) {
                      this.opts.element.trigger($.Event("select2-focus"));
                  }
                  this.container.addClass("select2-container-active");
                  this.dropdown.addClass("select2-drop-active");
                  this.clearPlaceholder();
              }));
  
              this.initContainerWidth();
              this.opts.element.addClass("select2-offscreen");
  
              // set the placeholder if necessary
              this.clearSearch();
          }
func_documentation_string: multi