Want to remove birt frame from report

Hi,

I have integrated birt with liferay for showing reports and charts.
I have written code at liferay side for running charts and removed navigation bar and tool bar using eclipse code as shown in attachment red square, but when I am performing drill down birt frame is coming once again which I don't want. Please help in in removing navigation bar and tool bar at birt designer side so that it won't bother me at liferay side....