pdetoolbox

Hi!

i am using pde toolbox for solving Laplace eqn and the heat
conduction equation as a coupled system(coupled via the heat source
density)in the generic system mode.

My geometry is a rectangle ABCD with coordinates as
follows:A(0,0),B(20,0),C(20,50)and D(0,50). BC and DA have Neumann
Boundary,CD is a mixed boundary. The boundary AB is divided by a
point J(0,7) such that AJ has a Dirichlet Boundary and JB has a
Neumann Bounday.
Now in AJ, my u(1)=1.2(volts) and u(2)=300(Kelvin). At CD u(1)=0 and
u(2) follows the Neumann Boundary Condition.

Now my question is how to specify the initial conditions in the
solve menu of the pde tool box, for my problem.I need the syntax to
specify both the initial conditions for u(1)and u(2).
Thanks in advance
John