text: Hi there\n\nTo work with xml it is probably a good idea to create xml files and store data there. Then you can read the xml document and process the data there. The following links show some examples of working with xml :\n\nhttp://devresource.hp.com/drc/technical_articles/xmlprocess/index.jsp\n\nhttp://www.csharphelp.com/archives/archive199.html\n\nTo highlight days on a calendar do this:\n\nSelectedDatesCollection theDates = Calendar1.SelectedDates;\ntheDates.Clear();\ntheDates.Add(new DateTime(2006,11,21));\ntheDates.Add(new DateTime(2006,11,20));\ntheDates.Add(new DateTime(2006,11,19));\n   \nCalendar1.SelectedDayStyle.BackColor=System.Drawing.Color.Red;\n\nSet what the selected date is on the calendar and then change its back color to what ever you want. More infor here:\n\nhttp://msdn2.microsoft.com/en-us/library/e057ff0d.aspx\n\nTo do a popup window use javascript and call \n\nwindow.open() method.\n\nYou can open up a .aspx page and display your calendar there:\n\nMore about window.open here:\nhttp://www.devguru.com/Technologies/ecmaScript/quickref/win_open.html\n\nHope this helps