var state = (function () {
  var flag = true
  return {
    changeState: function () {
      flag = !flag
    },
    getState: function () {
      return flag
    }
  }
})(this)

$('.wrap').on('click', 'a', function  () {
  state.changeState()
  var $A = $('.wrap a')
  	.toggleClass('circle', state.getState())
  	.toggleClass('cross', !state.getState())
})
$('')



 /* $('a').mouseover(function(){$(this).css('background-color','#ddd')})
*/