var d_to = new Date();                                            
d_to.setDate(d_to.getDate() + 3);                                 
var s_to = cal_generate_date(d_to);                               
if (limi){s_to = '02-05-2012'};                                   
var cal1 = new calendar(s_to, 'book', 'date_to', 0, '01-10-2012');