Inline edit not working in IE

When using IE, two errors occur on loading the page (see below for error messages)

This seems to cause the inline edit fields no longer work.
The text which should have appeared inside the field appears above an open text field.

Error Messages:

Line: 2
Char: 4780
Error: Expected identifier, string or number
Code: 0
URL: http://build.fluidproject.org/fluid/sample-code/inline-edit/announcements/announcements/html

Line: 331
Char: 21
Error: Object doesn't support this property or method
Code: 0
URL: http://build.fluidproject.org/fluid/sample-code/inline-edit/announcements/announcements/html