is this line correct?!

Hey Skuba,

I believe you'll need to actually define the whole criteria again. For example:

      if { ([string tolower [HTTP::host]] starts_with "www.abc.com") or ([string tolower [HTTP::host]] starts_with "www.def.com")} {

It probably isn't critical, but you might want to perform the tolower to make a variable instead of performing the operation twice

      set hostval [string tolower [HTTP::host]]
      if { ($hostval starts_with "www.abc.com") or ($hostval starts_with "www.def.com")} {

I believe that the example you used would do is evaluate if "www.def.com" is true - which it should always be (i.e. similar to a "while true" statement). There are some more details on the 'or' operator here, too: http://devcentral.f5.com/wiki/default.aspx/iRules/or.html

// Ben