Facebook button mods and more javascript

Last night, I made some modifications to the Facebook button we had been using. When taking a challenge, the user has the option of sharing their current progress. This had been displayed originally as:

I had done this original styling of the Facebook button, but it was more a temporary fix than anything else and didn't really match up with the color palette or design of the rest of the site. Also the placement below the check-in and abandon buttons just made the current challenge display awkwardly large (vertically). I found a simple Facebook "f" symbol from the (thousands!) of FB images littering the web and then used Photoshop to add some text (using the default font for our app). The text was specific to our application so I felt it worked better than the generic "share on facebook". I also decided to move the button to be in-line with the check-in and abandon buttons rather than below it since this looked cleaner. The result:

I also feel that the darker blue fits better with the other colors. I used this same blue color for the "share to facebook" button that appears when the user finishes a challenge. Now the Facebook buttons are at least consistent.

I also added a simple check for these buttons to determine if they should be displayed. Obviously, if a user is not logged in through Facebook, then these buttons should not be displayed because they will not work (and will actually cause a server error if clicked). Hence by adding one line prior to each button display in the current challenge partial view:

-unless current_user.auth_token.blank?

I was able to determine whether or not the user had logged in with Facebook (if the auth_token was blank, then the user was not logged in with Facebook).

While modifying the Facebook buttons, I also added some more Javascript to the current challenge partial. This code checks if the user has finished a week and then displays the time and date when they can start checking in for the next week. This information is also displayed in the modal that pops up when a user finishes a week, but this only displays once for a given week so the user could easily forget when they can start their next round of check-ins. Adding this to the current challenge fixed this issue.