// usage: 
//  oc> h = 3e-05 // or whatever new val you want
//  oc> set_gh()

proc set_gh() {
    forall {
        if (issection("soma.*")) {
            gkhbar_Ih = h
        } else if (hD == 1 && issection("dend.*")) {
            for (x, 0) gkhbar_Ih(x) = h * exp(dendIh_growth*distance(x)/400)
        }
    }
}
