In C#
string querystring = "#&checkin=2014-01-18&checkout=2014-01-19&Tovalue=DUBAI&rmdet=r1adt1&rmtotcnt=1&Gensessionid=mmlffl45e30mqsfb45vtnm55";
string[] splittedArray = querystring.Split('&');
Javascript:
var querystring = '#&checkin=2014-01-18&checkout=2014-01-19&Tovalue=DUBAI&rmdet=r1adt1&rmtotcnt=1&Gensessionid=mmlffl45e30mqsfb45vtnm55';
var splittedArray = querystring.split("&");
console.log(splittedArray);