function hi(b) {
                        b.className = "menu_table_cell_hi";
                }
        function low(b) {
                        b.className = "menu_table_cell_low";
                }
        function hi2(b) {
                        b.className = "menu_table_cell_hi2";
                }
        function low2(b) {
                        b.className = "menu_table_cell_low2";
                }