Linking four Linksys WRT54GL

Hi

I have four Linksys WRT54GL with DD-WRT Firmware that I want to connect to each other. Now I am using one Router as Master and the three others as Slave.

I want all of these Routers to connect to each other without using “Master” and “Slave” solution.

Example:

If I turn on Router2 and Router4 I want them to find each other and connect. When Router3 and Router2 is available I want all of them to be linked.