window.onload=function(){
    if(navigator.appName == "Microsoft Internet Explorer"&&parseInt(navigator.appVersion.split(";")[1].replace(/[ ]/g, "").replace("MSIE",""))<=8){
        document.body.innerHTML += '<div id="browser-modal"><div class="browser-modal-cover"></div><div class="browser-content"><div class="browser-text"><h3 class="browser-text-title">请升级浏览器版本</h3><p class="browser-text-desc">你正在使用旧版本浏览器。请升级浏览器以获得更好的体验。</p></div><div class="browser-list"><div class="browser-item"><a href="https://www.google.cn/chrome/" target="_blank"><div class="iconfont iconchrome"></div><h4>Chrome</h4></a></div><div class="browser-item"><a href="http://www.firefox.com.cn/" target="_blank"><div class="iconfont iconfirefox"></div><h4>Firefox</h4></a></div><div class="browser-item"><a href="https://www.opera.com/zh-cn" target="_blank"><div class="iconfont iconopera"></div><h4>Opera</h4></a></div><div class="browser-item"><a href="https://www.microsoft.com/zh-cn/edge" target="_blank"><div class="iconfont iconEdge"></div><h4>Edge</h4></a></div></div></div></div>';
    }
}

// 禁止右键 
$(function(){
    document.oncontextmenu = function (event){
        if(window.event){
        event = window.event;
        }
        try{
        var the = event.srcElement;
            if (!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){
            return false;
            }
            return true;
        }
        catch (e){
            return false;
        }
    }
    //  禁止复制 
    document.oncopy = function (event){
        if(window.event){
        event = window.event;
        }
        try{
            var the = event.srcElement;
            if(!((the.tagName == "INPUT" && the.type.toLowerCase() == "text") || the.tagName == "TEXTAREA")){
            return false;
            }
            return true;
            }
        catch (e){
            return false;
        }
    }
});