or(var i=0, l=data_list.length; i<rows; i++){
				data.items.push(dojo.mixin({ id: i }, data_list[i%l]));
			}
		
			// global var "test_store"
			test_store = new dojo.data.ItemFileWriteStore({data: data});
		
			var layout = [[
				{name: 'Column 1', field: 'id'},
				{name: 'Column 2', field: 'col2'},
				{name: 'Column 3', field: 'col3'},
				{name: 'Column 4', field: 'col4', width: "150px"},
				{name: 'Column 5', field: 'col5'},
				{name: 'Column 6', field: 'col6'},
				{name: 'Column 7', field: 'col