Like Bear Bibeault says, please use code tags. I added them for you so you could see what it looks like.
I would change a few things to make this more readable. For example, don't have an upper case method name. The naming standards are that your method name start with a lower case letter.
then, you are passing around this variable "kaspomat" that is always null. as you call
That further confuses things.
then, the return value from the "Kaspomat" method is never read.
then, the parameter you are looking in "radios" is not the name of any control from the form. On the form, the radio buttons are named "kaspomat"
also, avoid using "l" (lower case L) and "1" (the number "one") in names like you do. In a lot of fonts, these look the same and when looking back over your code that can confuse.
but in first one, I used a "one" and in second one I used a lower case L
See the problem is not with the button but the way you are calling doPost1 here you are comparing with kaspomat but can you just see that in doPost1 you are passing null so it will always be null , actually you have to loop through String kaspomat1=request1.getParameterValues("radios"); and then pass the individual array elements so that correct output is processed..