页面cache-autocomplete

        var allCitys = [] ;

$.ajax({
    type : "get",
    url : _allcinemacityUrl,
    data : {},
    async : false,
    success : function(data){
    var citys = jQuery.parseJSON(data);
if(citys.code == 0){
var ccityResps = jQuery.parseJSON(citys.msg);
for(var i=0; i<ccityResps.length; i++){
allCitys[i] = {       
                        cityid:ccityResps[i].cityid,
                        cityname:ccityResps[i].cityname  
                    };        
                }       
}
     }
});

$('#ccityName').autocomplete({
   source: function(query, process) {
   var a = new Array();
   for ( var i = 0; i < allCitys.length; i++) {
   if (allCitys[i].cityname.indexOf(query) >= 0) {
   a.push(allCitys[i]);
   }
   }
   return a;
   },
   formatItem: function(item) {
   return item.cityname + '(' + item.cityid + ')';
   },
   setValue: function(item) {
   $('#ccityId').val(item.cityid);
   return {
   'data-value' : item.cityname,
   'real-value' : item.cityid
   };
   },
   minLength: 1
   });