var limi = 0;
var d_from = new Date();
var s_from = cal_generate_date(d_from);
if (makeDayNumber(s_from) < 2011121){
var limi = 1;
s_from = '01-05-2011'}				
new calendar(s_from, 'book', 'date_from', 0, '29-09-2011');