JS add events, remove events, block bubbles, Block browser default behavior, and so on (compatible with Ie/ff/chrome)

Online about this aspect of the code is more and more chaotic, here to tidy up and improve. Add Event

var addevent = function (obj, type, fn) {  if (obj.addeventlistener)      obj.addeventlistener (type, FN, false);  else if (obj.attachevent) {      obj["e" +type+fn] = fn;      Obj.attachevent ("On" +type, function () {          obj["E" +type+fn].call (obj, window.event);      });}  ;

removing events

var removeevent = function (obj, type, fn) {  if (obj.removeeventlistener)      obj.removeeventlistener (Type, FN, Fals e);  else if (obj.detachevent) {      obj.detachevent (  "on" +type, obj["E" +type+fn]);      obj["E" +type+fn] = null;  }};

Block events (including bubbling and default behavior)

var stopevent = function (e) {    e = e | | window.event;    if (e.preventdefault) {      e.preventdefault ();      E.stoppropagation ();    } else{      e.returnvalue = false;      E.cancelbubble = true;    }  },

Block event bubbling only

var stoppropagation = function (e) {   e = e | | window.event;  if (!+ "\v1″) {     e.cancelbubble = true;  } else {     e.stoppropagation ();}  }

Block browser default behavior only

var  preventdefault  = function (e) {    e = e | | window.event;    if (e.preventdefault) {      e.preventdefault ();    } else{      e.returnvalue = false;    }}

Get Event Source Object

var geteventtarget = function (e) {   e = e | | window.event;  var target = event.srcelement? Event.srcElement:event.target;  return target;}

Attached: Binding Onpropertychange event Onpropertychange, which is triggered when an element's attribute changes, is typically used to capture its value change in a FORM element, which captures its change more in real time than the onchange event, but for Microsoft private events. FF is roughly similar to its Oninput event, but it only targets the Value property of TextField and textarea. Both Safari,firefox,chrome and opera support this event.

var addpropertychangeevent = function (OBJ,FN) {  if (window. ActiveXObject) {      obj.onpropertychange = fn;  } else{      obj.addeventlistener ("input", fn,false);}  }