unlimited browsing limited download mikrotik=?????help

/ ip address
add address=192.168.100.1/24 network=192.168.100.0 broadcast=192.168.100.255 interface=local
add address=192.168.15.200/24 network=192.168.15.0 broadcast=192.168.1.255 interface=wlan1
add address=192.168.16.200/24 network=192.168.16.0 broadcast=10.112.0.255 interface=wlan2

/ ip firewall mangle
add chain=input in-interface=wlan1 action=mark-connection new-connection-mark=wlan1_conn
add chain=input in-interface=wlan2 action=mark-connection new-connection-mark=wlan2_conn
add chain=output connection-mark=wlan1_conn action=mark-routing new-routing-mark=to_wlan1
add chain=output connection-mark=wlan2_conn action=mark-routing new-routing-mark=to_wlan2
add chain=prerouting dst-address=19.168.15.0/24 action=accept in-interface=local
add chain=prerouting dst-address=192.168.16.0/24 action=accept in-interface=local
add chain=prerouting dst-address-type=!local in-interface=local per-connection-classifier=both-addresses:2/0
action=mark-connection new-connection-mark=wlan1_conn passthrough=yes
add chain=prerouting dst-address-type=!local in-interface=local per-connection-classifier=both-addresses:2/1
action=mark-connection new-connection-mark=wlan2_conn passthrough=yes
add chain=prerouting connection-mark=wlan1_conn in-interface=local action=mark-routing new-routing-mark=to_wlan1
add chain=prerouting connection-mark=wlan2_conn in-interface=local action=mark-routing new-routing-mark=to_wlan2

/ ip route
add dst-address=0.0.0.0/0 gateway=192.168.15.1 routing-mark=to_wlan1 check-gateway=ping
add dst-address=0.0.0.0/0 gateway=192.168.16.1 routing-mark=to_wlan2 check-gateway=ping
add dst-address=0.0.0.0/0 gateway=192.168.15.1 distance=1 check-gateway=ping
add dst-address=0.0.0.0/0 gateway=192.168.16.1 distance=2 check-gateway=ping

/ ip firewall nat
add chain=srcnat out-interface=wlan1 action=masquerade
add chain=srcnat out-interface=wlan2 action=masquerade

/ip dns
set allow-remote-requests=yes cache-max-ttl=1w cache-size=2048KiB max-udp-packet-size=512 primary-dns=208.67.222.222 secondary-dns=208.67.220.220

pcc 2 wan +1 lan

http://wiki.mikrotik.com/wiki/Manual:Queue

use queues with Burst rates, thats almost the best advice i can give you, i like doing something like
4mb burst with 128k queue, that way you let someone burst for 10 seconds they can get 40mb of data, allowing them to load any website with ease, but when they downloading then after the 10 seconds it will limit them to 128k.