This function will replace (and add a tooltip that show the date instead) all dates with different random number (1-99). The function is called when the calender is loaded and if the year is changed.
When the user click on a date (now with a random number) a pop-up should be shown where a number between 1-99 could be choosen. A save button should be included in the pop-up and if pressed the date should be updated with the number.
Below is an example of the year calender.
9 freelancers are bidding on average $23 for this job