Zopistas: If there is a simple form named "Form_1" and created within the web ZMI in a DTMLDocument object, like: <dtml-if mensaje_error> <dtml-var mensaje_error> </dtml-if> <form action="product/validate_Form_1" method="post"> <input type="text" name="account"> <input type="submit" name="submit" value="Enter >"> </form> I have also built a Zope product which works fine, it is instantiated in the same Folder as "Form_1" with the id "product" and it provides the method "validate_Form_1" which is something quite simple to validate errors: def validate_Form_1(self,REQUEST,RESPONSE): "Code to validate form1" if not REQUEST.account: self.REQUEST['msg_error']="Account code is required" elif len(self.REQUEST['account']) < 1: self.REQUEST['msg_error']="Account lenght < 1 " elif len(self.REQUEST['account']) > 6: self.REQUEST['msg_error']="Account lenght > 6" REQUEST=self.REQUEST return self.Form_1(REQUEST) My problem is, everytime the Form_1 is returned from the validate_Form_1, the URL in the browser starts growing like: http://localhost:8080/Folder/Form_1 <--- Initial call, works OK http://localhost:8080/Folder/product/Form_1 <---First validation http://localhost:8080/Folder/product/product/Form_1 <----2nd pass. and so on.... I want the .../product/product/... not to start growing with every pass through the product's methods. I want the return, to print in the browser's URL the actual path to the Form_1, if possible, without the "product" .... What would be the way of doing that? I have tried RESPONSE.redirect instead of just "return self.Form_1(REQUEST)" with absolute_url() and using things like REQUEST['HTTP_REFERER'] but in those cases I am not able to pass any parameters back (REQUEST) Your assistance, comments and suggestions are greatly appreciated...Thanks in advance Edward.