从同一个单击事件中停止两个或多个单击事件

I have created a button in jsp page and i have written two click functions for the same button, one with the tag and the other with the class/id of the button. Now, when i click on the button, both the click functions are getting called one by one. My requirement is that inside the first click function, i want to stop the second click function. I do not want to remove the remove the second click function as in some cases i need it to execute.I have created a button in jsp page and i have