Deleting Multiple Columns using ECMA

function DeleteCrossChargeTransactions(vReferenceId)

{

    try

        {

           

            var contextDelete = new SP.ClientContext.get_current();

            var webDelete = contextDelete.get_web();

            var listDelete = webDelete.get_lists().getByTitle('Cross Charge Details NA');

            var queryDelete = new SP.CamlQuery();

           

            queryDelete.rowLimit=100;

            queryDelete.set_viewXml('<View Scope=\'RecursiveAll\'><Query><Where><Eq><FieldRef Name="Reference_x0020_Id" /><Value Type="Text">'+vReferenceId+'</Value></Eq></Where></Query></View>');

            // add your query to the getItems command for your list

           this.collListItemsDelete = listDelete.getItems(queryDelete);

           

             // issue the load command, these can be batched for multiple operations

             contextDelete.load(collListItemsDelete);

             // execute the actual query against the server, and pass the objects we have created to either a success or failure function

             contextDelete.executeQueryAsync(Function.createDelegate(this, this.SuccessFunction), Function.createDelegate(this, this.failed));

                                    

        }

    catch(e)

        {

           

        }

}

function SuccessFunction()

{

    var itemsToDelete = new Array();

    var count = this.collListItemsDelete.get_count();

    //alert("Rc count:"+ count);

   var listEnumerator = this.collListItemsDelete.getEnumerator();

   var contextDelete= new SP.ClientContext.get_current();

    while (listEnumerator.moveNext()) {

       var item = listEnumerator.get_current();

     // var s=item.get_item("Reference_x0020_Id");

       itemsToDelete.push(item);

   }    

   for (var i = itemsToDelete.length-1; i >= 0 ; i--) {

       itemsToDelete[i].deleteObject();

       //alert('Deleted:'+ i);

   }

   contextDelete.executeQueryAsync(Function.createDelegate(this, this.allItemsDeleted), Function.createDelegate(this, this.failed));

   

}