jQuery is it Possible to bind() to the alert() event so I can bypass the default message box

I want bind to an event but I am not sure if its possible开发者_开发百科. I have several coders on a project of which some use the standard alert() function. I want to catch that event when its fired off and display a jquery ui module. Is this even possible? I know I can go through and replace the alerts with a dialog() but i'd rather not sore through thousands of lines of code cross several files to do it if I don't have to.

The alert function does not fire an event, but you can override it:

//Save the old alert function if necessary
var savedAlert = window.alert;
window.alert = function(str){
  //Show dialog
}

This would have to run before any calls to alert().

You could directly overwrite the window.alert method with one of your own functions that creates a jQuery UI Dialog instead. This would destroy the alert box for every other scenario, but you could cache it first in case you still wanted to use it.

var _alert = window.alert;
window.alert = function (message) {
   // create/show dialog
};