Cross-browser Compatible Bind

bind.js

/* Cross-browser Compatible Event Bind Method
 *
 * @arguments element reference, event name, function/function reference
 *
 */

var bind = (function (win) {
  if (win.addEventListener) {
    return function (elem, evt, fn, phase) {
      elem.addEventListener(evt, fn, phase || false);
    };
  } else if (win.attachEvent) {
    return function (elem, evt, fn) {
      elem.attachEvent('on' + evt, fn);
    };
  } else {
    return function (elem, evt, fn) {
      var oldfn = elem['on' + evt];

      elem['on' + evt] = function () {
        if (oldfn && typeof oldfn === 'function') {
          oldfn();
        }

        fn();
      };
    };
  }
}(window));

bind.min.js

var bind=(function(a){return a.addEventListener?function(a,b,c,d){a.addEventListener(b,c,d||false)}:a.attachEvent?function(a,b,c){a.attachEvent('on'+b,c)}:function(a,b,c){var
d=a['on'+b];a['on'+b]=function(){d&&typeof d==='function'&&d(),c()}}})(window)