How can I have a form (i.e. a login form) on every page and redirect to the current page after submitting the form and show errors (if occured) no matter on which page the form is?
How can I have a form (i.e. a login form) on every page and redirect to the current page after submitting the form and show errors (if occured) no matter on which page the form is?
To use a form in every page I advice you to use portlet.
Also check qiangs nice login extension (requires portlet).
See this cookbook page.