var Event = function() { } var KeyEvent = function() { } KeyEvent.SpecialKeys = { non : 0, up : 1, down : 2, left : 3, right : 4, esc : 5, enter : 6, backspace: 7, del : 8 }; KeyEvent.prototype = new Event(); KeyEvent.prototype.key = ""; KeyEvent.prototype.isSpecialKey = false; KeyEvent.prototype.modifier = { ctrl : false, meta : false, alt : false, altgr: false }