Question

Here is the function, I just want it to commit or activate when the form is submited only.
Currently, I have to add onclick="ShowProgressAnimation();" to each form, I want to take place when submit is clicked, global setting

function ShowProgressAnimation() {
  $("#loading-div-background").css({ opacity: 0.8 });
  $("#loading-div-background").show();
  $(".button-2").hide();
}

Answer 1

You can bind it to the submit event of the form:

$('.form-selector').on('submit', function(eventObject) {
    ShowProgressAnimation();
}

Just be careful that your form will be submitted, won’t it?