Common event handling Function JS Library

varEventutil = {            /** Add Event Handling Parameters: Element Object Event type handling function*/AddHandle:function(element, type, handle) {//event Additions at the dom2 level                if(Element.addeventlistener) {Element.addeventlistener (type, handle,false); } Else {                    //event Additions for IE                    if(element.attachevent) {element.attachevent (' On ' +type, handle); } Else {                        //assigning values to element attributeselement[' on ' + type] =handle; }                }            },            /** Remove Event Handling Parameters: Element Object Event type handling function*/RemoveHandle:function(element, type, handle) {//event Removal at the dom2 level                if(Element.removeeventlistener) {Element.removeeventlistener (type, handle,false); } Else {                    //event removal for IE                    if(element.detachevent) {element.detachevent (' On ' +type, handle); } Else {                        //assign a value to an element attribute to an empty object to remove an eventelement[' on ' + type] =NULL; }                }            },            //Gets the event object in IE with the parameter event object passed into the DOM via window.event to accessGetEvent:function(event) {returnEvent?event:window.event; },            //get the event of the target Dom via Event.target get in IE via event.srcelementGettarget:function(event) {returnEvent.target | |event.srcelement; },            //Cancel the default behavior of an eventPreventdefault:function(event) {if(event.preventdefault) {//Dom MethodEvent.preventdefault (); } Else {                    //Set IE Event.returnvalue = FalseEvent.returnvalue =false; }            },            //Stop event bubblingStoppropagation:function(event) {//Dom Method                if(event.stoppropagation) {event.stoppropagation (); } Else{event.cancelbubble=true;; }            },            //Get related target objectsGetrelatedtarget:function(event) {//Dom method Relatedtarget only contains values for mouseover and mouseout events Otherwise this value is null                if(event.relatedtarget) {returnEvent.relatedtarget; } Else {                    //IE                    if(event.toelement) {returnevent.toelement; } Else {                        if(event.fromelement) {returnevent.fromelement; } Else {                            return NULL; }                    }                }            },            //getting the mouse button 0 means that the left key 1 means that the middle wheel 2 is the right buttonGetbutton:function(event) {//whether DOM mouse events are supported                if(Document.implementation.hasFeature (' mouseevents ', ' 2.0 '))) {                    returnEvent.button; } Else {                    Switch(Event.button) { Case0:                         Case1:                         Case3:                         Case5:                         Case7:                            return0;  Case2:                         Case6:                            return2;  Case4:return1; }                }            },            //Get character encodingGetcharcode:function(event) {if(typeofEvent.charcode = = ' Number ') {                    returnEvent.charcode; } Else {                    returnEvent.keycode; }            }        };

Common event handling Function JS Library