iRule relocating top level folders to https. Need some help

  
  when HTTP_REQUEST {  
    
      Check if host contains blah.com (case-insensitive)  
     if {[string tolower [HTTP::host]] contains "blah.com"}{  
    
         Redirect based on the requested URI (case-insensitive)  
        switch -glob [string tolower [HTTP::uri]] {  
           "*/folder01" {  
              HTTP::redirect "http://www.blah.com/folder01/default.aspx"  
    
               Exit HTTP_REQUEST in this rule  
              return  
           }  
           "*/folder02" {  
              HTTP::redirect "http://www.blah.com/folder01/default.aspx"  
    
               Exit HTTP_REQUEST in this rule  
              return  
           }  
           "*/folder03" {  
              HTTP::redirect "http://www.blah.com/folder01/default.aspx"  
    
               Exit HTTP_REQUEST in this rule  
              return  
           }  
           "*/folder04" {  
              HTTP::redirect "http://www.blah.com/folder01/default.aspx"  
    
               Exit HTTP_REQUEST in this rule  
              return  
           }  
           default {  
              HTTP::redirect "http://www.blah.com/default.aspx"  
    
               Exit HTTP_REQUEST in this rule  
              return  
           }  
        }  
     } elseif { [matchclass [string tolower [HTTP::host]] equals $::BLAH_Hosts] } {  
        pool BLAH_WEB  
     } else {  
        HTTP::redirect "http://www.blah.com/default.aspx"  
     }  
  }