How to detect a long press on a button/image

Question

I am working on a phonegap project. I need to implement a long press event. How can we detect long press on a image/button using JavaScript?

Answer 1

$('#target').mousedown(function() {
  alert('Handler for .mousedown() called.');
  //start a timer
});

$('#target').mouseup(function() {
  alert('Handler for .mouseup() called.');
  //stop the timer and decide on long click

});