[Zope] A refrased Q: How do I write <or>..?

Problem: I want to write <or> [the expression OR] in an URL. Example: If you write OR this way : %, I write "http://somedomain.com/index_html?l=bla-bla%blab-blab" Example: If you write OR this way : &, I write "http://somedomain.com/index_html?l=bla-bla&blab-blab" What i know: You can use wildcards [bla*], but CAN YOU USE or...? If so HOW!!! Hope that someone knows the answer to this not-so-newbie-anymore's Q... = ) ( = Stoons = )