ds_on = new Image(); ds_on.src = "./img/ds_on.gif";

ds_off = new Image(); ds_off.src = "./img/ds_off.gif";



book_now_en_on = new Image(); book_now_en_on.src = "./img/book_now_en_on.gif";

book_now_en_off = new Image(); book_now_en_off.src = "./img/book_now_en_off.gif";



book_now_lt_on = new Image(); book_now_lt_on.src = "./img/book_now_lt_on.gif";

book_now_lt_off = new Image(); book_now_lt_off.src = "./img/book_now_lt_off.gif";



book_now_ru_on = new Image(); book_now_ru_on.src = "./img/book_now_ru_on.gif";

book_now_ru_off = new Image(); book_now_ru_off.src = "./img/book_now_ru_off.gif";



book_now_pl_on = new Image(); book_now_pl_on.src = "./img/book_now_pl_on.gif";

book_now_pl_off = new Image(); book_now_pl_off.src = "./img/book_now_pl_off.gif";


function on(which) {

	if (document.images) {

		eval('document.images["' + which + '"].src=' + which + '_on.src;');

	}

}

        

function off(which) {

	if (document.images) {

		eval('document.images["' + which + '"].src=' + which + '_off.src;');

	}

}