passing paramters using navigation->setparamter

hi,

I have two pages pg1.htm and pg2.htm in a BSP appl.

I am passing parameters from pg1 to pg2 using

navigation->setparameter ( ).

Values of paramters are accesible in onInitialization of pg2, but they become blank in onInputProcessing of the same page i.e. pg2.

how do I access them in onInputProcessing ???

thanks in advance,

Ashish