rem: oeDatePicker.gPopup.closePopup(); 
add: oeDatePicker.gPopup.hidePopup(); 
context: oeDatePicker.clickDay = function( newDayItemNumber ){   // get the clicked day        var dayNumberItem = document.getElementById( "oe-date-picker-month-day-text-" + newDayItemNumber );      var dayNumber = dayNumberItem.getAttribute( "value" );      // they may have clicked an unfilled day, if so ignore it and leave the picker up      if( dayNumber != "" )   {      // set the selected date to what they cliked on            oeDatePicker.gSelectedDate.setDate( dayNumber );            oeDatePicker.selectDate();      oeDatePicker.gPopup.closePopup();   }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/692e6792ad2e0d9a27a269f0bdeae99e74884e96/datepicker.js/clean/calendar/resources/content/datepicker/datepicker.js