* Removes focus from the window. If focus is outside the window, it is left unchanged.

* @param {string} file_name name of an image file in the help/ folder, including extension * @returns {HTMLImageElement} an image element

* Wrapper for AccessKeys.toHTML that ensures whitespace isn't collapsed in cases like "Fox &Trot" or "Fo&x Trot" where the access key abuts a space.

* @hidden

* Helper function. Checks if 'e' is defined. If so, it aborts the transaction, * triggers the callback with 'e', and returns false. Otherwise, retur

* Sets the title, or if `text` isn't passed, returns the current title of the window. * * Uses jQuery getter/setter function idiom.

* @param {Tool} tool * @returns {HTMLImageElement} an image element representing the tool

* @param {ToolID} id * @returns {Tool} tool object