facebook script

Hi geeks
i need to edt a mkrtik script i found on this forum so that can can serve me with the following REQ:

1- Facebook Speed will open on 2.5 Mbps Speed for 10 Seconds boost then Can be used on 512 Kbps speed
2- Facebook will be given 10 GB for each customer per month
3- All types of photos and images whether browsing or inside applications or any thing else load on 1 Mbps speed

the Script is :

/ip firewall layer7-protocol
add comment=Browsing name=Browsing regexp=
“\.(xml)|\.(php)|\.(css)|\.(js)\r
\n^.get.+\.facebook.$”
add comment=photos name=photos regexp=
“\.(jpg)|\.(gif)|\.(ico)|\.(jpeg)|\.(png)|\.(bmp)”

/ip firewall mangle
add action=mark-connection chain=prerouting comment=Browsing layer7-protocol=
Browsing new-connection-mark=Browsing
add action=mark-packet chain=prerouting comment=Browsing connection-mark=
Browsing new-packet-mark=Browsing passthrough=no
add action=mark-connection chain=prerouting comment=photos layer7-protocol=
photos new-connection-mark=photos
add action=mark-packet chain=prerouting comment=photos layer7-protocol=photos
new-packet-mark=photos

/queue tree
add comment=Browsing name=Browsing packet-mark=Browsing parent=global
priority=1 queue=default
add comment=photos name=photos packet-mark=photos parent=global priority=1
queue=default

Any one please