Irule maintenace page switches to another page after a time defined

Hi,

use table with virtual server name as key instead of global variables

when RULE_INIT {
    set static::table_timeout 43200
}

when CLIENT_ACCEPTED {
    if { [active_members [LB::server pool]] < 1 } {
        set lb 0
    } elseif { [active_members [LB::server pool]] > 0 } {
        set lb 1
        if {[table lookup -subtable maintenance [virtual name]] ne 1} {
            table set -subtable maintenance [virtual name] 1 $static::table_timeout 0
        }
    }
}

when HTTP_REQUEST {
    if {$lb ==0}{
        switch -glob [HTTP::path] {
            "*/image1.png" {
                HTTP::respond 200 content [ifile get imagefile1] "Content-Type" "image/png"
            }

            "*/image2.png" {
                HTTP::respond 200 content [ifile get imagefile2] "Content-Type" "image/png"
            }
            default {
                if {[expr {[table lifetime -subtable maintenance -remaining [virtual name]] - $static::table_timeout}] < 300}{
                    HTTP::respond 200 content [ifile get Sorry_Page] "Content-Type" "text/html" noserver
                }
                else {
                    HTTP::respond 200 content [ifile get Sorry_Page_5] "Content-Type" "text/html" noserver
                }
            }
        }
    }
    TCP::close

}