The attached file is a .htm file that you can use to create a calendar in media lab and have your participant enter data for each day of the month. You can edit the file by right clicking and selecting 'edit' When you save your changes save the new file as a 'webpage'
In order to actually use this in medialab, create a new questionnaire, name your calendar (e.g., june06) and change item type to 'custom'. In the 'File name' column reference your calendar. For each empty space in the calendar create a new line in the questionnaire file (e.g., june0106, june0206, ..., june3006). Save your questionnaire and voila!
FYI, I believe this only works for media lab v2006