Hi, I made three pages, into one with Iframe, and my Idea is to view the data in a one frame. If I don´t need a submit Form, how I could made it? Please can someone send me an example, because my knowledge in javascript are very poor, and I need build this calculator to replace an excel sheet. Please see:http://application.hawa.ch/productfinder/Src/Productfinder/dsp_detail.aspx?artID=14968&languageID=Enand then: "Calculation aid"Many thanks for all your help.Regards