I find the operation of this (SelectSupplier.php) form slightly confusing. If a search returns only one result, then the list of (one) selected suppliers is unnecessarily repeated when the page reloads, and conversely, once you have selected a supplier (either the single result of a search, or selected from the list), and then run a search which returns multiple results, the previously-selected supplier details are left on screen.
Add new image files for the new alert and confirm dialogs
CSS required for the new akert and confirm dialogs
Javascript required for new alert and confirm dialogs
Add in the confirm dialog for logging out
HTML required for new dialogs
Remove unnecessary HTML
Neaten up code
Merge pull request #135 from timschofield/develop

New alert and confirm dialogs