// 

function $parseJson(str){try{eval('var obj='+str);return obj;}catch(e){return null;}}
function $toJsonString(obj){var isArray=obj instanceof Array;var r=[];for(var i in obj){var value=obj[i];if(typeof value=='string'){value='"'+value+'"';}else if(value!=null&&typeof value=='object'){value=$toJsonString(value);}
r.push((isArray?'':i+':')+value);}
if(isArray){return'['+r.join(',')+']';}else{return'{'+r.join(',')+'}';}}
function SortData(datas,field,type){var airline;SortFun.field=field;airline=datas.sort(SortFun);if(type=="down"){airline=datas.reverse();}
return airline;}
function SortFun(data1,data2){if(data1[SortFun.field]>data2[SortFun.field]){return 1;}
else if(data1[SortFun.field]<data2[SortFun.field]){return-1;}
return 0;}