[Octane]

var myObject = {
	0:{inner1open:false, inner:'inner1', podmenu:'podmenu1'},
	1:{inner2open:false, inner:'inner2', podmenu:'podmenu2'},
	2:{inner3open:false, inner:'inner3', podmenu:'podmenu3'},
  /*  3:{inner4open:false, inner:'inner4', podmenu:'podmenu4'},*/
	length:3/*4*/
};

Чем Array не понравился?)

var myObject = [
	{inner1open:false, inner:'inner1', podmenu:'podmenu1'},
	{inner2open:false, inner:'inner2', podmenu:'podmenu2'},
	{inner3open:false, inner:'inner3', podmenu:'podmenu3'}
];