Table alternative fills - issue

Question

I have small doubt regarding the above image
Is there any way to create these alternative table fills in indesign in this method? this one i created manually. i hava large document contains full of tables, my client asking like this.
can anyone help me with this?

Answer 1

Alternatively, use this Javascript. Had some fun working around merged cells too (try it!).
var currTable = null;
if (app.selection.length == 1)
          currTable = app.selection[0];
          if (currTable.hasOwnProperty ("baseline"))
                    currTable = currTable.parent;
          if (currTable instanceof Cell)
                    currTable = currTable.parent;
          if (currTable instanceof Row)
                    currTable = currTable.parent;
          if (currTable instanceof Column)
                    currTable = currTable.parent;
          if (!(currTable instanceof Table))
                    currTable = null;
var swatchlist = [];
for (i=0; i<app.activeDocument.swatches.length; i++)
          swatchlist.push (app.activeDocument.swatches[i].name);
swatchDialog = app.dialogs.add ({name:"Set Alternate Table Fill",canCancel:true});
with (swatchDialog)
          with (dialogColumns.add())
                    with (dialogRows.add())
                              staticTexts.add ({staticLabel:"Top left swatch"});
                              listbox1 = dropdowns.add ({stringList:swatchlist, selectedIndex:0});
                    with (dialogRows.add())
                              staticTexts.add ({staticLabel:"Next swatch"});
                              listbox2 = dropdowns.add ({stringList:swatchlist, selectedIndex:0});
                    if (currTable != null)
                              with (dialogRows.add())
                                        with (radiobuttonGroups.add())
                                                  justthisone = radiobuttonControls.add({staticLabel:"Just this one table", checkedState:true});
                                                  allofem = radiobuttonControls.add({staticLabel:"All tables", checkedState:false});
if (currTable != null)
          try {
                    listbox1.selectedIndex = getSwatchIndex(currTable.cells[0].fillColor);
          } catch (_) { }
          try {
                    listbox2.selectedIndex = getSwatchIndex(currTable.cells[1].fillColor);
          } catch (_) { }
if (swatchDialog.show())
          if (justthisone.checkedState == true)
                    doTable (currTable, app.activeDocument.swatches.item(listbox1.selectedIndex), app.activeDocument.swatches.item(listbox2.selectedIndex) );
          } else
                    for (st=0; st<app.activeDocument.stories.length; st++)
                              for (ta=0; ta<app.activeDocument.stories[st].tables.length; ta++)
                                        doTable (app.activeDocument.stories[st].tables[ta], app.activeDocument.swatches.item(listbox1.selectedIndex), app.activeDocument.swatches.item(listbox2.selectedIndex));
function getSwatchIndex (swatch)
          var i;
          for (i=0; i<app.activeDocument.swatches.length; i++)
                    if (app.activeDocument.swatches[i] == swatch)
                              return i;
          return 0;
function doTable (table, swatch1, swatch2)
          var c;
          for (c=0; c<table.cells.length; c++)
                    table.cells[c].fillColor = ((table.cells[c].parentRow.index ^ table.cells[c].parentColumn.index) & 1) ? swatch2 : swatch1;