shorcut.js

var shortcut = {
	keys: [],

	setup: function() {
		document.addEventListener('keypress', this.keypress, false);	
		return this;
	},

	bind: function(key, handler) {
		this.keys[key] = handler;
		return this;
	},

	keypress: function(e) {
		if (e.shiftKey || e.ctrlKey || e.altKey || e.metaKey) return;
		var key = String.fromCharCode(e.which);
		var handler = shortcut.keys[key];
		if (handler) handler(e);
	}
};