WEB Temlete/WAD Customization

Hi Experts,

I had a Sales FOre Cast report in 3 different versions

Weekly View

Monthly View and

Quarterly View.

The Rows and Free Chars for all the 3 reports are same only the calculactions in the coulmns changes accordingly.

Users access report through SAP PORTAL.My requirment to customizecreate a templete "SALES Forecast"

When i user select "SALES Forecast" in Portal by defauly it should display Quarterly View and there shoul be 3 radio buttons for Quarterly,Weekly & Monthly so that after viewing the Quarterly view the user can able to select any one of the view he likes

Could you please update me how to achive this

Thanks