Batch deletion of JS code

2. <script type="Text/javascript" >
4. function Seltall () {
6. var chckboxsign = document.getElementById ("ckb"); //ckb Select Box ID for all selected/reversed selection
8. var chckbox = document.getelementsbyname ("Chckbox"); //All selection boxes It's all chckbox.
10. var num = chckbox.length;
12. if (chckboxsign.checked) {
14. For (var index =0; index<num; index++) {
16. chckbox[index].checked = true;
18. }
20. }else{
22. For (var index =0; index<num; index++) {
24. chckbox[index].checked = false;
26. }
28. }
30. }
34. function Deleseltedrecords () {
36. var chckbox = document.getelementsbyname ("Chckbox");
38. var num = chckbox.length;
40. var ids = "";
42. For (var index =0; index<num; index++) {
44. if (chckbox[index].checked) {
46. ids + = Chckbox[index].value + ",";
48. }
50. }
52. if (ids!="") {
54. if (window.confirm ("OK" to delete the selected record? ")){  
56. $.ajax ({
58. Type: "POST",
60. URL: '.. /g3/history-no!batchdelete.action?ids= ' + IDs, //action to be deleted by itself
62. DataType: ' json ',
64. Success: function (data) {
66. Alert ("Delete succeeded");
68. Window.location.href = "Channel-no.action";
70. },
72. Error: function (data) {
74. Alert ("System error, delete failed");
76. }
78. });
80. }
82. }else{
84. Alert ("Please select a record to delete");
86. }
88. }
90. </script>

Batch deletion of JS code