/**
 * @class bindkey
 * Bind a groupment of pressed key to an action
 *
 * @param String sBind : The bind, like Shift+Enter
 * @param Object oFunction : The function to bind to the requiered element
 */
;(function($) {$.fn.bindkey = function (sBind, oFunction) {
	if (this.length == 0)
		return;

	var _sBind = sBind.toLowerCase ();
	var _oCallback = oFunction;
	var _oPressed = {shift: false, ctrl: false, alt: false};
	var _oWaited = {shift: false, ctrl: false, alt: false, specific: -1};
	var _oKeys = {'esc':27, 'echap': 27, 'tab':9, 'space':32, 'return':13, 'enter':13, 'backspace':8, 'scroll':145, 'capslock':20, 'numlock':144, 'pause':19,
				'break':19, 'insert':45, 'home':36, 'delete':46, 'suppr':46, 'end':35, 'pageup':33, 'pagedown':34, 'left':37, 'up':38, 'right':39, 'down':40,
				'f1':112, 'f2':113, 'f3':114, 'f4':115, 'f5':116, 'f6':117, 'f7':118, 'f8':119, 'f9':120, 'f10':121, 'f11':122, 'f12':123}

	function init () {
		aKeys = _sBind.split ('+');
		iKeysCount = aKeys.length;
		for (i = 0; i < iKeysCount; i++) {
			switch (aKeys[i]) {
				case 'shift':
					_oWaited.shift = true;
					break;
				case 'ctrl':
					_oWaited.ctrl = true;
					break;
				case 'alt':
					_oWaited.alt = true;
					break;
			}
		}

		_oWaited.specific = _oKeys[aKeys[iKeysCount-1]];

		if (typeof (_oWaited.specific) == 'undefined')
			_oWaited.specific = aKeys[iKeysCount-1].toUpperCase ().charCodeAt (0);

	}

	this.keydown (function (oEvent) {
		_oPressed.shift = oEvent.originalEvent.shiftKey;
		_oPressed.ctrl = oEvent.originalEvent.ctrlKey;
		_oPressed.alt = oEvent.originalEvent.altKey;

		if (oEvent.which == _oWaited.specific
				&& _oPressed.shift == _oWaited.shift
				&& _oPressed.ctrl == _oWaited.ctrl
				&& _oPressed.alt == _oWaited.alt) {

			_oCallback (this);
			_oPressed.shift = false;
			_oPressed.ctrl = false;
			_oPressed.alt = false;
		}
	});

	this.keyup (function (oEvent) {
		_oPressed.shift = oEvent.originalEvent.shiftKey;
		_oPressed.ctrl = oEvent.originalEvent.ctrlKey;
		_oPressed.alt = oEvent.originalEvent.altKey;
	});

	init ();

	return $(this);
}})(jQuery);