How to create a custom “confirm” & pause js execution until user clicks button?

function buttonEventHandler() {

if (condition1) {
  if(!showConfirmForCondition1) // want execution to pause while waiting for user response.
     return; // discontinue execution
}

if (condition2) {
  if (!showConfirmForCondition2) // want execution to pause while waiting for user response.

     return; // discontinue execution
}

if (condition3) {
  if (!showConfirmForCondition3) // want execution to pause while waiting for user response.

     return; // discontinue execution
}

...
}

function BeforeDelete(controlUniqueId) {
    confirmPopup('question...?', function() { __doPostBack(controlUniqueId, ''); });
    return false;
}

function confirmPopup(message, okCallback) {
    $('#popup-buttons-confirm').click(okCallback);
    // set message
    // show popup
}