Bogdan questions

• The string "ďťż" appears on my page randomly but only in firefox. IE and chrome don't have this problem.
• How can I disable the normal submit on enter behavior on a text input and replace it with a function of my own?
• Is there a way to set the default font and font-size in CKEditor?
• jQuery: how can I select only the checkboxes that are visible and checked?
• How to get phpexcel to keep leading 0s in phone numbers?
• How can I force two elements to always stay on the same line in a <td>

Bogdan answers