Redirect from a jsp to another portlet with RenderURL

Hi,
I'm using liferay 6.0.6 and MVCPortlet.

I would like to redirect from a portletA view (jsp) to another portlet (let's say its name in portlet.xml is portletNameB ).
To do so I tryed to redirect from the view of PortletA to the portletB with a renderURL like this :

Code:

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<liferay-portlet:renderURL portletName="portletNameB_WARname" varImpl="redirectURL"> <liferay-portlet:param name="jspPage" value="/html/pathToJsp.jsp" /> </liferay-portlet:renderURL> <aui:button value="redirectButton" onClick="<%=redirectURL.toString()%>" name="redirectButton" />

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If I specify a windowState attribute to Exclusive or Maximize it correctly called the render method from my portletB and after that it displays the view.
Otherwise it will always call the render method from my portletA and displays the default view (my jspPage param seems to be lost)

Is it possible to use Normal Windows state to simply display in my portletA area the view of a portletB ?
Will the actionURL on my portletB view still working and calling actions of the portletB after redirection?

Thanks for your help.