function change_main_menu_show(id) {
	$("#"+id).css("display", "none");
	$("#"+id+"_h").css("display", "block");
}

function change_main_menu_hide(id) {
	$("#"+id+"_h").css("display", "none");
	$("#"+id).css("display", "block");
}

function price_recalc(cnt_good, price, obj_out) {
	var pr = new String(price);
	p = pr.replace(" ", "");
	var e = parseInt(cnt_good)*p;
	$('#'+obj_out).text(number_separator(e.toString(), " "));
}

function number_separator(number, separator) {
	var tmp_number = new Array();
	for(var i = number.length, j = 0; i > 0; i -= 3)
	{
		var pos = i > 0 ? i - 3 : i;
		tmp_number[j++] = number.substring(i, pos);
	}
	number = tmp_number.reverse().join(separator);
	return number;
}