This is thought as anti-cheating measure. Everytime you draw cards the time will be noted so your opponent could see if you would have redrawn objectives at the end of the game.
Obviously this will display/hide a menu where you find all the other important buttons.
Rules shows/hides the YAMS rules, help shows/hides this help text you are reading.
This button will draw a hand of 6 cards from the shuffled YAMS deck. (number depending on your current settings)
This button will show all cards in the YAMS deck. You do not need this in a game
A once discarded card will again appear in your hand. (discard?? see below)
The plus and minus button allow you to count victory points. Its really just a simple counter.
This button will open you email client and lets you send an email with a list of your current cards.
All cards are "flipped" and will only show their non-telling backsides.
This will hide all game-breaking buttons.
Since mYAMS uses html5 webstorage to save the state you left mYAMS in this is the function to reset it into base mode.
This will open a panel where you can enter some settings. Right now thats the number of cards you draw and discard in your game. You apply those settings buy using the same button to close the panel again.
This button is located on each card and will discard the card. When you have the allowed number of cards in hand the discard button will disappear.
A click on the card header will show this card exclusive and hide all other cards. This is useful to show your opponent that you have this card and avoid him seeing your deck. Another click on the header will bring the deck back.