function A1format() {
 var ss = SpreadsheetApp.getActiveSpreadsheet();
 var mainsheet = ss.getSheetByName("Sheet1");
 var G = mainsheet.getRange("C15:BH3000").getGridId();
 var illa = mainsheet.getRange("A13");
 Logger.log(G);
 illa.copyFormatToRange(G, 16, 3,200, 30);
 }
This doesnt Work and gives some strange Server error. Please help
