関連ワード:  how to use a function in javascript    how to use a function in java    how to call a function in javascript    how to call a function in java    how to use a method in java    how to call a function in javascript from html    how to call a function in javascript on button click    how to call a function in javascript from another file    how to call a function in javascript on page load    how to call a function in java from another class