jQuery jqModal confirm dialog callback issue

Question

Using the code from the jqModal website, section FUN! Overrides:
http://dev.iceburg.net/jquery/jqModal/#examples
(I edited the code to make use of a callback function)

function confirm(msg,callback) {
  $('#confirm')
    .jqmShow()
    .find('p.jqmConfirmMsg')
      .html(msg)
    .end()
    .find(':submit:visible')
      .click(function(){
        if(this.value == 'yes')
          (typeof callback == 'string') ?
            window.location.href = callback :
            callback();
        $('#confirm').jqmHide();
      });
}

$().ready(function() {
  $('#confirm').jqm({overlay: 88, modal: true, trigger: false});

  // trigger a confirm whenever links of class alert are pressed.
  $('a.confirm').click(function() { 
    confirm('About to visit: '+this.href+' !',callbackfunction); 
    return false;
  });
});

function callbackfunction()
{
 console.log("callback triggered");
}

The problem: each time when the confirm function is called, the callback gets triggered incrementally, so when I click the 2nd time, the handler gets executed 2 times, the 3th time, 3 times and so on.

Answer 1

This happens because each time you call the confirm function, you add a new 'click' event handler.