function exec(i, event) {
		var f = $.jstree._focused(), tmp;
		if(f && f.data && f.data.hotkeys && f.data.hotkeys.enabled) { 
			tmp = f._get_settings().hotkeys[i];
			if(tmp) { return tmp.call(f, event); }
		}
	}
class: FileError

Implementation of HTML file API error code return class. Note that we don't
actually define the error codes here--we rely on the browser's built-in FileError
class's constants. In other words, external clients of this API should always
use FileError.<constant-name>, not NativeFileSystem.FileError.<constant-name>.

@constructor
@param {number} code The error code to return with this FileError. Must be
one of the codes defined in the FileError class.