javascript - Calendar Keep Selected Date After Passing PHP Variable -

i use calendar code below minor modification made, anyway when select date, calendar highlights date selected great when pass selected date , redirect url, calendar looses selected date , no longer highlighted on next page, since passing variable, how can edit calendar code , pass selected variable selected date known , highlighted on calendar in next page (same calendar).

        g_globalobject = new jsdatepick({         usemode:1,         isstripped:true,         target:"div3_example"     });           g_globalobject.setonselecteddelegate(function(){         var obj = g_globalobject.getselectedday();          if (obj.month.tostring().length < 2) {             var date = obj.year + "-0" + obj.month + "-" + obj.day             //alert(date);             window.top.location.href = '..index.php?pdate=' + date;         }else         {             var date = obj.year + "-" + obj.month + "-" + obj.day             //alert(date);             window.top.location.href = '..index.php?pdate=' + date;         }      }); 

jsdatepick has configuration option called selecteddate can used pre-select date. can parse query string , feed option @ initialization.

sadly, turns out selecteddate buggy , disable date picker when used. there fix in 15437091/jsdatepick-using-a-selected-date in answer of user cesar referencing selecteddate - problem im jsdatepick javascript - modul (javascriptcalendar.org) (in german) requires modification of source. rather that, can use wrapping:

// duplicate original function jsdatepick.prototype.setconfiguration_original = jsdatepick.prototype.setconfiguration;  // redefine function jsdatepick.prototype.setconfiguration = function() {      // call original function     jsdatepick.prototype.setconfiguration_original.apply(this, arguments);      // use "selecteddate"     if(this.oconfiguration.selecteddate){         this.currentyear          = this.ocurrentday.year;         this.currentmonth         = this.ocurrentday.month;         this.currentday           = this.ocurrentday.day;         this.selecteddayobject    = this.oconfiguration.selecteddate;         this.flag_adaywasselected = true;     } }  // parse query string selected date var pdate = location.search.match(/[\?&]pdate=(\d+)-(\d+)-(\d+)/); pdate = pdate     ? {year:parseint(pdate[1]), month:parseint(pdate[2]), day:parseint(pdate[3])}     : null;  var g_globalobject = new jsdatepick({     usemode:1,     isstripped:true,     selecteddate: pdate,     target:"div3_example", });