what if analysis

[#1]

I have to make a what-if analysis, where the user sets the values of some variables (using some sliders) and then qlikview calculates the results based on the variables

in this topic  http://community.qlik.com/message/203731#203731  they told me i have to make a partial reload to calculate the results

but i cannot do this since the end user cannot do a partial reload using qlikview via web

so is there a way to create working what-if analysis in qlikview??

Edited:
i have attached an example, with a simple what if analysis and alla the things discussed in this topic

[#2]

I didn't understand the mechanichs of = and $ with variables, but at least i got what i needed 😃

Anyway to get the total in the textbox i can just:
=sum($(vResult))

Thanks for all your help!

Maik