Cross-browser common events

Source: Internet
Author: User
Tags return window

Cross-browser Add event function addevent (obj, type, fn) {if (Obj.addeventlistener) {Obj.addeventlistener (type, FN, false);} else I   F (obj.attachevent) {obj.attachevent (' on ' + type, function () { (obj);});} Cross-browser Remove event function removeevent (obj, type, fn) {if (Obj.removeeventlistener) {Obj.removeeventlistener (type, FN, false);   else if (obj.detachevent) {obj.detachevent (' on ' + type, fn);}} Cross-browser blocking default behavior function Predef (evt) {var e = evt window.event; if (e.preventdefault) {E.preventdefault ();} else {E.retur Nvalue = false; }//cross-browser Get target object function Gettarget (evt) {if ( {//w3c return;} else if (window.event.srcElement   ) {//ie return window.event.srcElement}} Cross-browser get character encoding function Getcharcode (evt) {var e = evt window.event; if (typeof E.charcode = = ' number ') {return e.charcode; else {return e.keycode;}}

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