How to configure 2 routers with one dsl line

Hello,
I had a Netgear DG834G (Wireless ADSL Firewall) it was working fine, until my ISP had a problem in their server. So, they sent me a HUAWEI Echolife HG520b (Router), it works fine. But i want my Netgear to be the router that i will connect my pcs and laptop to, because it is more convenient and reliable.
My ISP said that Huawei should be the one that is connect to a dsl cable.

Information about routers :
Router A : Huawei
                Default Gateway     : 192.168.1.1
                Subnet Mask          : 255.255.255.0
                Starting IP Address : 192.168.1.2
                Ending IP Address   :192.168.1.254
Router B : Netgear
                Default Gateway     : 192.168.0.1
                Subnet Mask          : 255.255.0.0 (it was 255.255.255.0 by default but i changed it to 255.255.0.0)
                Starting IP Address : 192.168.0.2
                Ending IP Address   :192.168.0.254
So, i think this following should be how it is set up :
DSL cable from telephone line
     |
Router A => Router B => use the free Ethernet ports for my pcs & laptops
     |
WiFi & Ethernet connection to laptop.

Here i also want that the Router A should assing an IP from router B, if i connect the devices to Router A. But if when i tried disabling the DHCP in Router A i was not able to access the web configurator by going to 192.168.1.1. So i also want that i should be able to access both the Configurators

Thank you for your kind support and co-operation.