ajax test

(function ($) {
 
function loadNode(obj){
obj.closest('.filter').find('.item').removeClass('select');
obj.parent().addClass('select');
$(".channel-list").html(obj.data('cache'));
}
 
var filter = $('.filter'),
item = filter.find('.item')
 
item.on('click','a',function(){
var $this = $(this),
_this = this,
id = $this.parent().attr("date-id");
 
//data存在
if($this.data('cache')){
loadNode($this);
return false
}
 
$.ajax({
type:"GET",
dataType: "text",
url:'/data/js/'+id+'.js?'+Math.ceil(new Date()/),
 
beforeSend:function(){
if(_this.ajaxStatus){return false} //ajax状态开关
_this.ajaxStatus = true;
},
 
success:function(datas){
$this.data('cache',datas);
loadNode($this);
},
 
error: function(XMLHttpRequest, textStatus, errorThrown) {
_this.ajaxStatus = false;
//console.log(XMLHttpRequest.status);
//console.log(XMLHttpRequest.readyState);
//console.log(textStatus);
}
 
});
return false
})
 
})(jQuery);