How to decrease/increase radWindow height from radioButton L

Question

How to decrease/increase radWindow height from radioButton List click in Javascript.

I have a Telerik RadWindow in my user control which Should adjust height based on the content Template's conatent
I tried using autosize() property, but in vain
On click of first radio buttonit has to decrease(by hiding some content)
on click of second radio button it has to increase height (by displaying the content).