1 //复选框全选 2 var oCheckBox ={ 3     _check_all: function(obj){ 4         if("all" == obj.name){ 5             if(obj.checked){ 6                 $("#days input:checkbox").each(function(){ 7                     this.checked = true; 8                 }); 9             }else{10                  $("#days input:checkbox").each(function(){11                     this.checked = false;12                 });13             }14         }else{15             var oAll = document.getElementById("checkall");16             if(obj.checked){17                 var allDays = document.getElementById("days").childNodes;18                 for (var i=0; i < allDays.length; i++)19                 {20                     if((allDays[i].type == "checkbox") &&  !allDays[i].checked){21                          oAll.checked = false;22                          return;23                     }24                 }25                 oAll.checked = true;26             }else{27                 oAll.checked = false;28             }29         }30     },31     _init_checkbox:function(){32         $("#days input:checkbox").each(function(){33             $(this).attr("checked", false);34         });35         $("#checkall").attr("checked", false);36     }37 }