if (baseCalendarModel.isDefaultCalendar(baseCalendar)) {
removeButton.setDisabled(true);
removeButton.setImage("/common/img/ico_borrar_out.png");
removeButton.setHoverImage("/common/img/ico_borrar_out.png");
}
operationsTreecell.appendChild(removeButton);
treerow.appendChild(operationsTreecell);
item.appendChild(treerow);