Javascript expert for bookmarklet

I am looking for a bookmarklet to be developed for my website. This bookmarklet should do a number of things. (A) Check if a user is logged in on another domain. If the user is not logged in then a login form will be displayed. The user should be able to submit this form without leaving the domain that they are on (B) When the user is logged in the bookmarklet should 1. Toggle in from the right of the screen 2. Populate a carousel of the 'main' images on the page. 'Main' images are the images that show the ecommerce product on the page. 3. Be able to select from a dropdown list box a value. If the value is not in the drop down list box they should be able to create a new value which involves submitting a form to another domain. The dropdown list box will be populated with this new value. 4. Also populate a number of other text, hidden form fields on the bookmarklet 5. Drag and drop text from website user is currently on to a textarea 6. Submit form to a php file that is already developed