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让FF和IE离得更近

作者:佚名 来源:网络整理 更新时间:2011-1-5
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给FF添加了IE专有的属性和方法:

让FF和IE离得更近(图一)

让FF和IE离得更近(图二)

让FF和IE离得更近(图三)

<script language="JavaScript" type="Text/JavaScript">
<!--
if(window.Event){// 修正Event的DOM
    Event.prototype.__defineSetter__("returnValue",function(b){//
        if(!b)this.preventDefault();
        return b;
        });
    Event.prototype.__defineSetter__("cancelBubble",function(b){// 设置或者检索当前事件句柄的层次冒泡
        if(b)this.stopPropagation();
        return b;
        });
    Event.prototype.__defineGetter__("srcElement",function(){
        var node=this.target;
        while(node.nodeType!=1)node=node.parentNode;
        return node;
        });
    Event.prototype.__defineGetter__("fromElement",function(){// 返回鼠标移出的源节点
        var node;
        if(this.type=="mouseover")
            node=this.relatedTarget;
        else if(this.type=="mouseout")
            node=this.target;
        if(!node)return;
        while(node.nodeType!=1)node=node.parentNode;
        return node;
        });
    Event.prototype.__defineGetter__("toElement",function(){// 返回鼠标移入的源节点
        var node;
        if(this.type=="mouseout")
            node=this.relatedTarget;
        else if(this.type=="mouseover")
            node=this.target;
        if(!node)return;
        while(node.nodeType!=1)node=node.parentNode;
        return node;
        });
    Event.prototype.__defineGetter__("offsetX",function(){
        return this.layerX;
        });
    Event.prototype.__defineGetter__("offsetY",function(){
        return this.layerY;
        });
    }
if(window.Document){// 修正Document的DOM
    }
if(window.Node){// 修正Node的DOM
    Node.prototype.replaceNode=function(Node){// 替换指定节点
        this.parentNode.replaceChild(Node,this);
        }
    Node.prototype.removeNode=function(removeChildren){// 删除指定节点
        if(removeChildren)
            return this.parentNode.removeChild(this);
        else{
            var range=document.createRange();
            range.selectNodeContents(this);
            return this.parentNode.replaceChild(range.extractContents(),this);
            }
        }
    Node.prototype.swapNode=function(Node){// 交换节点
        var nextSibling=this.nextSibling;
        var parentNode=this.parentNode;
        node.parentNode.replaceChild(this,Node);
        parentNode.insertBefore(node,nextSibling);
        }
    }
if(window.HTMLElement){
    HTMLElement.prototype.__defineGetter__("all",function(){
        var a=this.getElementsByTagName("*");
        var node=this;
        a.tags=function(sTagName){
            return node.getElementsByTagName(sTagName);
            }
        return a;
        });
    HTMLElement.prototype.__defineGetter__("parentElement",function(){
        if(this.parentNode==this.ownerDocument)return null;
        return this.parentNode;
        });
    HTMLElement.prototype.__defineGetter__("children",function(){
        var tmp=[];
        var j=0;
        var n;
        for(var i=0;i<this.childNodes.length;i++){
            n=this.childNodes[i];
            if(n.nodeType==1){
                tmp[j++]=n;
                if(n.name){
                    if(!tmp[n.name])
                        tmp[n.name]=[];
                    tmp[n.name][tmp[n.name].length]=n;
                    }
                if(n.id)
                    tmp[n.id]=n;
                }
            }
        return tmp;
        });
    HTMLElement.prototype.__defineGetter__("currentStyle", function(){
        return this.ownerDocument.defaultView.getComputedStyle(this,null);
        });
    HTMLElement.prototype.__defineSetter__("outerHTML",function(sHTML){
        var r=this.ownerDocument.createRange();
        r.setStartBefore(this);
        var df=r.createContextualFragment(sHTML);
        this.parentNode.replaceChild(df,this);
        return sHTML;
        });
    HTMLElement.prototype.__defineGetter__("outerHTML",function(){
        var attr;
        var attrs=this.attributes;
        var str="<"+this.tagName;
        for(var i=0;i<attrs.length;i++){
            attr=attrs[i];
            if(attr.specified)
                str+=" "+attr.name+'="'+attr.value+'"';
            }
        if(!this.canHaveChildren)
            return str+">";
        return str+">"+this.innerHTML+"</"+this.tagName+">";
        });
    HTMLElement.prototype.__defineGetter__("canHaveChildren",function(){
        switch(this.tagName.toLowerCase()){
            case "area":
            case "base":
            case "basefont":
   

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