JS多项选择删除

$(document).ready(function(){
$("#batdel").click(function(){
var checkedLen = 0;
var checkedVal = new Array();
var boxes = $('#tb :checkbox');

for(var i=0;i<boxes.length;i++){
if(boxes[i].checked == true){
checkedLen++;
checkedVal.push(boxes[i].value);
}
}
if(checkedLen == 0){
art.dialog.alert("请先选择记录!");

return false;
}
//art.dialog.alert(checkedVal.join(','));     //输出选中的id
art.dialog.confirm('您确认要删除该信息吗？',function(){
$.get('news/del?id='+checkedVal.join(','),function(r){
if(r=='ok'){
opSuccess('信息删除成功');
}else{
art.dialog.alert(r);
}
});
},function(){ return true})

});
});