public void loadSale(PosScreen pos) {
List shoppingLists = createShoppingLists();
if (!shoppingLists.isEmpty()) {
Hashtable salesMap = createSalesMap(shoppingLists);
if (!salesMap.isEmpty()) {
LoadSale loadSale = new LoadSale(salesMap, this, pos);
loadSale.openDlg();
}
else {
pos.showDialog("dialog/error/nosales");
}
} else {