Pause web loading

RouterOS Scripting
1

Can you advise me how can I get to make me suspend loading certain content?
I have two mangle rules - for HTML (by extension html, php, asp, etc) and IMAGES (by extension jpg, gif, png, etc.)
I can load IMAGES after load HTML without priority? HTML load now and IMAGES load after two seconds.

Thank

2

mangle can’t filter by extension. to block by extension, you must use webproxy access list:
http://wiki.mikrotik.com/wiki/Manual:IP/Proxy