给moz-firefox下添加IE方法和属性

        });
    }
if(window.Document){// 修正Document的DOM
    /*
                                IE5        MacIE5        Mozilla        Konqueror2.2        Opera5
    document.documentElement    yes        yes            yes            yes                    no
    document.activeElement        yes        null        no            no                    no

    */
    }
if(window.Node){// 修正Node的DOM
    /*
                                IE5        MacIE5        Mozilla        Konqueror2.2        Opera5
    Node.contains                yes        yes            no            no                    yes
    Node.replaceNode            yes        no            no            no                    no
    Node.removeNode                yes        no            no            no                    no