Pure JavaScript-compliant Add and remove event encapsulation _javascript tips for browsers

Event processing compatible with a variety of browsers, using the ability to detect methods, the so-called ability to detect, that is, ability to do, do not have the ability to do//define an object to handle events, compatible with various browsers, DOM2 level event handling and IE events, if these two events are incompatible, use the DOM0 level Eventutil ={addevent:function (element,type,handler) {if (Element.addeventlistener) {//non IE browser with DOM2-level event handling , type is an event type such as: Click,handler is an event handler, and false represents an event with a bubbling model, if true represents a capture-processing model, or a capture-processing model in addition to NetBeans, and the other uses a bubble-handling model/
      If the non-IE browser add event is: AddEventListener Element.addeventlistener (Type,handler,false);
      }else if (element.attachevent) {//If for IE browser, add event using Attachevent element.attachevent (' on ' +type,handler);
      }else{element[' on ' +type] = handler; Removeevent:function (Element,type,handler) {if (Element.removeeventlistener) {//Non IE browser takes dom2 level event
      	Processing, type for event types such as: Click,handler is an event handler, false represents an event with a bubbling model, and if true represents a capture-processing model and a capture-processing model in addition to NetBeans, others adopt a bubble-handling model
      If the non-IE browser add event is: RemoveEventListener Element.removeeventlistener (Type,handler,false);
}else if (element.detachevent) {      	If for IE browser, add events using DetachEvent element.detachevent (' on ' +type,handler);
      }else{//dom0 Level Event handling, if the deletion event takes the assignment null element[' on ' +type] = null;
    Getevent:function (Event) {//Get event itself return event?event:window.event;
    Gettype:function (Event) {//Get event type return event.type;
    }, Getelement:function (event) {//Get Events Action element return Event.target | | event.srcelement; 
      {Preventdefault:function (event) {//block default event behavior if (event.preventdefault) {event.preventdefault ();
      }else{Event.returnvalue = false; }}, Stoppropagation:function (event) {//Stop event bubbling if (event.stoppropagation) {Event.stoppropagatio
    	  N ();
    	  }else{event.cancelbubble = true; }
    }




 }