To avoid calling of Onload function Twice

Question

Hi,

I have a application in which body tag one 'onload' function is defined.

I am doing some operations in that onload function which is working fine when page is getting loaded.

I have a button that page and on click of that I am doing some operations which is also working fine.

But when I am clicking on button after button operation , 'onload' function is also getting called.

I want to avoid call of 'onload' function i.e. wanted to do button click operations only.

 

How can I do that?