给moz-firefox下添加IE方法和属性

        var shortTypeName=sType.replace(/on/,"");
        fHandler._ieEmuEventHandler=function(e){
            window.event=e;
            return fHandler();
            }
        this.addEventListener(shortTypeName,fHandler._ieEmuEventHandler,false);
        }
    HTMLElement.prototype.detachEvent=function(sType,fHandler){
        var shortTypeName=sType.replace(/on/,"");
        if(typeof(fHandler._ieEmuEventHandler)=="function")
            this.removeEventListener(shortTypeName,fHandler._ieEmuEventHandler,false);
        else
            this.removeEventListener(shortTypeName,fHandler,true);
        }
    HTMLElement.prototype.contains=function(Node){// 是否包含某节点
        do if(Node==this)return true;
        while(Node=Node.parentNode);
        return false;
        }
    HTMLElement.prototype.insertAdjacentElement=function(where,parsedNode){
        switch(where){
            case "beforeBegin":
                this.parentNode.insertBefore(parsedNode,this);
                break;
            case "afterBegin":
                this.insertBefore(parsedNode,this.firstChild);
                break;
            case "beforeEnd":
                this.appendChild(parsedNode);
                break;
            case "afterEnd":
                if(this.nextSibling)