全选、全不选方法
function selectAll(objSelect) { if (objSelect.checked == true) { $("input[name='chkId']").attr("checked", true); $("input[name='chkAll']").attr("checked", true); }else if (objSelect.checked == false) { $("input[name='chkId']").attr("checked", false); $("input[name='chkAll']").attr("checked", false); } }