function getKeyCodeStringFromNumber(iKeyCode) {
		for (var sKey in KeyCodes) {
			if (KeyCodes.hasOwnProperty(sKey)) {
				if (KeyCodes[sKey] === iKeyCode) {
					return sKey;
				}
			}
		}
	}
Retrieves keycode string from number
@param iKeyCode
@returns {string}