本文实例讲述了js实现的自定义右键菜单。分享给大家供大家参考。具体如下：
示例1：
运行效果截图：
具体代码如下：
立即学习“Java免费学习笔记（深入）”；
其中ajax.js代码如下：
var _LT_ajax_proxyXmlUrl="http://srvfree.api.51ditu.com/apisrv/p4x?";function LTNS(){LTNS.info={time:'Thu Jul 19 10:00:08 UTC+0800 2012',version:'1',ov:'1.3 Ver 20070705'};var w=function(uq){var iq=0,oq=0;var pq=uq.length;var aq=new String();var sq=-1;var dq=0;for(var fq=0;fq
=97)?(gq-61):((gq>=65)?(gq-55):(gq-48))));oq=(oq=8){var hq=oq>>(iq-8);if(dq>0){sq=(sq=224){sq=hq&(0xf);dq=2;}else if(hq>=128){sq=hq&(0x1f);dq=1;}else{aq+=String.fromCharCode(hq);};};oq=oq-(hq1){var uq=arguments[0]._LT_E_;for(var iq=0;iq=0;iq--){if(oq[iq]==yq){oq.splice(iq,1);break;};};}catch(pq){};oq=a.allEvents;for(var iq=oq.length-1;iq>=0;iq--){if(oq[iq]==yq){oq.splice(iq,1);break;};};while(yq.length>0){yq.pop()};delete yq;};function b(yq,event){if(!yq||!yq._LT_E_){return;};var uq,iq=yq._LT_E_;for(var oq=iq.length-1;oq>=0;oq--){uq=iq[oq];if(!event||uq[1]==event){v(uq);};};};function n(){var yq=a.allEvents;if(yq){for(var uq=yq.length-1;uq>=0;uq--){v(yq[uq]);};};a.allEvents=null;};function m(yq,event,uq){if(d(yq)){try{if(yq.fireEvent){yq.fireEvent(q[16]+event);};if(yq.dispatchEvent){var iq="mouseover,mouseout,mousemove,mousedown,mouseup,click,dbclick";var oq=o.createEvent("Event");oq.initEvent(event,false,true);yq.dispatchEvent(oq);};}catch(pq){alert('LTEvent.trigger error.');};}else{if(!uq){uq=[];};var aq=yq._LT_E_;if(aq&&aq.length>0){for(var sq=aq.length-1;sq>=0;sq--){var dq=aq[sq];if(dq&&dq[2]){if(dq[1]=="*"){dq[2].apply(yq,[event,uq]);};if(dq[1]==event){dq[2].apply(yq,uq);};};};};};};function _(){return o.all?(o.readyState!="loading"&&o.readyState!=q[12]):(a.readyState==q[11])};function Q(){if(!a.unLoadListener){a.unLoadListener=c(i,q[13],n);};if(!o.all&&!a.readyState){a.readyState=q[12];c(o,"DOMContentLoaded",function(){a.readyState=q[11];},true);};};yq(a,{getCallback:s,isHtmlControl:d,getObjWin:f,getWindowEvent:g,createAdapter:h,cancelBubble:j,returnTrue:k,bind:l,deposeNode:z,runOnceHandle:x,addListener:c,removeListener:v,clearListeners:b,clearAllListeners:n,trigger:m,isDocumentLoaded:_,load:Q});function W(yq,uq){var e=this;e[0]=yq?parseInt(yq):0;e[1]=uq?parseInt(uq):0;e.Longitude=e[0];e.Latitude=e[1];};yq(W.prototype,{getLongitude:function(){var e=this;return e[0];},getLatitude:function(){var e=this;return e[1];},setLongitude:function(yq){var e=this;e[0]=parseInt(yq);},setLatitude:function(yq){var e=this;e[1]=parseInt(yq);}});function E(yq){var e=this;e.win=yq?yq:i;};yq(E.prototype,{load:function(yq,uq,iq,oq){var e=this;if(!e.onLoadStart(yq)){return;};e.objName=oq?oq:"_OLR";var pq=e.win;pq[e.objName]=null;var uq=uq?uq:q[6];if(!e.jsFile){e.jsFile=pq.document.createElement(q[17]);e.jsFile.type=w("T6LuT2zgONPXSsDoQN1q");e.jsFile.defer=true;pq.document.body.insertBefore(e.jsFile,pq.document.body.firstChild);l(e.jsFile,"readystatechange",e,e.onReadyStateChange);l(e.jsFile,"load",e,e.onLoad);};e.jsFile.charset=uq;e.jsFile.src=yq;e.running=true;e.crypt=iq;},onLoadStart:function(yq){var e=this;m(e,"loadstart",[yq]);return true;},onLoad:function(yq){var e=this;var uq=e.win;if(uq[e.objName]){var iq=uq[e.objName];uq[e.objName]=null;m(e,q[10],[e.parseObject(iq)]);}else{m(e,q[9],[]);};if(!o.all&&e.jsFile&&e.jsFile.parentNode==uq.document.body){e.jsFile.removeAttribute("src");uq.document.body.removeChild(e.jsFile);delete e.jsFile;};e.running=false;},parseObject:function(yq){var e=this;if(e.crypt||yq.e){U(yq);};return yq;},onReadyStateChange:function(yq){var e=this;if(!e.jsFile||(e.jsFile.readyState!=q[10])){return;};e.onLoad();}});function R(yq,uq,iq,oq){var oq=oq?oq:i;var pq={url:yq,handle:uq,charset:iq,win:oq,classNum:1};var aq=I(oq);l(aq,q[10],pq,T);l(aq,q[9],pq,T);aq.load(yq,iq);};function T(yq){var e=this;e.classNum--;if(yq&&yq._classUrls){var uq;while(uq=yq._classUrls.pop()){e.classNum++;R(uq,Y(e),e.charset,e.win);};};if(e.classNum==0){e.handle.apply(e);};};function Y(yq){return function(){yq.classNum--;if(yq.classNum==0){yq.handle.apply(yq);};};};function U(yq){var uq;if(yq.t){yq.t=A(yq.t);};for(uq in yq.a){if(typeof yq.a[uq]==q[8]){yq.a[uq]=A(yq.a[uq]);};};for(uq in yq.c){if(typeof yq.c[uq]!=q[15]){U(yq.c[uq]);};};};function I(yq){var yq=yq?yq:i;var uq;if(!yq._LT_OLRS){yq._LT_OLRS=[];};for(var iq=0;iq=2048){iq=(iq>12)|0xe0)>6)|0x80)=128){iq=(iq>6)|0xc0)=6){var dq=iq>>(uq-6);iq=iq-(dq0){var dq=iq=97)?(fq-61):((fq>=65)?(fq-55):(fq-48))));iq=(iq=8){var gq=iq>>(uq-8);if(sq>0){aq=(aq=224){aq=gq&(0xf);sq=2;}else if(gq>=128){aq=gq&(0x1f);sq=1;}else{pq.push(String.fromCharCode(gq));};};iq=iq-(gq=3&&sq>2);uq+=tq.base64EncodeChars.charAt((pq&0x3)>2);uq+=tq.base64EncodeChars.charAt(((pq&0x3)>4));uq+=tq.base64EncodeChars.charAt((aq&0xF)>2);uq+=tq.base64EncodeChars.charAt(((pq&0x3)>4));uq+=tq.base64EncodeChars.charAt(((aq&0xF)>6));uq+=tq.base64EncodeChars.charAt(sq&0x3F);};return uq;},base64decode:function(yq){var e=this;var uq,iq,oq,pq;var aq,sq,dq;sq=yq.length;aq=0;dq=q[7];while(aq>4));do{oq=yq.charCodeAt(aq++)&0xff;if(oq==61)return dq;oq=e.base64DecodeChars[oq];}while(aq>2));do{pq=yq.charCodeAt(aq++)&0xff;if(pq==61)return dq;pq=e.base64DecodeChars[pq];}while(aq=0x0001)&&(pq0x07FF){uq+=String.fromCharCode(0xE0|((pq>>12)&0x0F));uq+=String.fromCharCode(0x80|((pq>>6)&0x3F));uq+=String.fromCharCode(0x80|((pq>>0)&0x3F));}else{uq+=String.fromCharCode(0xC0|((pq>>6)&0x1F));uq+=String.fromCharCode(0x80|((pq>>0)&0x3F));};};return uq;},utf8to16:function(yq){var uq,iq,oq,pq;var aq,sq;uq=q[7];oq=yq.length;iq=0;while(iq>4){case 0:case 1:case 2:case 3:case 4:case 5:case 6:case 7:uq+=yq.charAt(iq-1);break;case 12:case 13:aq=yq.charCodeAt(iq++);uq+=String.fromCharCode(((pq&0x1F)
示例2：
运行效果截图如下：
具体代码如下：
立即学习“Java免费学习笔记（深入）”；
自定义右键菜单
自定义右键菜单，请在页面点击右键查看效果。
完整实例代码点击此处本站下载。
希望本文所述对大家的javascript程序设计有所帮助。
