javascript firefox compatible ie dom method script_javascript skills

if(!document.all){
//zzcv’s ff ie compatible script
/* Problems and solutions not solved by the script:

2. Under IE, you can use () or [] Get collection class objects; under Firefox, you can only use [] to get collection class objects.
Solution: Use [] uniformly to get collection class objects.
3. Under IE, you can use the method of getting regular attributes. For custom attributes, you can also use getAttribute() to obtain custom attributes; under Firefox, you can only use getAttribute() to obtain custom attributes.
Solution: Get custom attributes uniformly through getAttribute().
4. Under IE, the ID of the HTML object can be used directly as the variable name of the document's subordinate object; under Firefox, it cannot.
5. Under Firefox, the same variable name as the HTML object ID can be used; under IE, it cannot.
Solution: Use document.getElementById("idName") instead of document.idName. It is best not to use variable names with the same HTML object ID to reduce errors; always add var when declaring variables to avoid ambiguity.
6. The input.type attribute is read-only under IE; but the input.type attribute is read-write under Firefox.
8. Under IE, modal and non-modal windows can be opened through showModalDialog and showModelessDialog; under Firefox It can't
9. Firefox's body exists before the body tag is fully read by the browser; while IE's body must exist after the body tag is fully read by the browser
10.
*/
//Document compatible
HTMLDocument.prototype.__defineGetter__("all",function(){
return this.getElementsByName("*");});

HTMLFormElement. constructor.prototype.item=function(s){
return this.elements[s];};

HTMLCollection.prototype.item=function(s){
return this[s]; };

//Event compatible
window.constructor.prototype.__defineGetter__("event",function(){
for(var o=arguments.callee.caller,e=null;o !=null;o=o.caller){
e=o.arguments[0];
if(e&&(e instanceof Event))
return e;}
return null;}) ;

window.constructor.prototype.attachEvent=HTMLDocument.prototype.attachEvent=HTMLElement.prototype.attachEvent=function(e,f){
this.addEventListener(e.replace(/^on/i ,""),f,false);};

window.constructor.prototype.detachEvent=HTMLDocument.prototype.detachEvent=HTMLElement.prototype.detachEvent=function(e,f){
this. removeEventListener(e.replace(/^on/i,""),f,false);};


with(window.Event.constructor.prototype){
__defineGetter__("srcElement ",function(){
return this.target;});

__defineSetter__("returnValue",function(b){
if(!b)this.preventDefault();}) ;

__defineSetter__("cancelBubble",function(b){
if(b)this.stopPropagation();});

__defineGetter__("fromElement",function(){
var o=(this.type=="mouseover"&&this.relatedTarget)||(this.type=="mouseout"&&this.target)||null;
if(o)
while( o.nodeType!=1)
                o=o.parentNode; type=="mouseover"&&this.target)||(this.type=="mouseout"&&this.relatedTarget)||null;
if(o)
while(o.nodeType!=1)
o=o.parentNode;
return o;});

__defineGetter__("x",function(){
return this.pageX;});

__defineG etter__ ("y",function(){
return this.pageY;});

__defineGetter__("offsetX",function(){
return this.layerX;});

__defineGetter__("offsetY",function(){
return this.layerY;});
}
//Node operations are compatible
with(window.Node.prototype){
replaceNode=function(o){
this.parentNode.replaceChild(o,this);}

removeNode=function(b){
if(b)
return this.parentNode .removeChild(this);
var range = document.createRange();
range.selectNodeContents(this);
return this.parentNode.replaceChild(range.extractContents(),this);}

    swapNode=function(o){
        return this.parentNode.replaceChild(o.parentNode.replaceChild(this,o),this);}

    contains=function(o){
        return o?((o==this)?true:arguments.callee(o.parentNode)):false;}
}
//HTML元素兼容
with(window.HTMLElement.prototype){
    __defineGetter__("parentElement",function(){
        return (this.parentNode==this.ownerDocument)?null:this.parentNode;});

    __defineGetter__("children",function(){
        var c=[];
        for(var i=0,cs=this.childNodes;i            if(cs[i].nodeType==1)
                c.push(cs[i]);}
        return c;});

    __defineGetter__("canHaveChildren",function(){
        return !/^(area|base|basefont|col|frame|hr|img|br|input|isindex|link|meta|param)$/i.test(this.tagName);});

    __defineSetter__("outerHTML",function(s){
        var r=this.ownerDocument.createRange();
        r.setStartBefore(this);
        void this.parentNode.replaceChild(r.createContextualFragment(s),this);
        return s;});
    __defineGetter__("outerHTML",function(){
        var as=this.attributes;
        var str="        for(var i=0,al=as.length;i            if(as[i].specified)
                str =" " as[i].name "="" as[i].value """;}
        return this.canHaveChildren?str ">":str ">" this.innerHTML "" this.tagName ">";});

    __defineSetter__("innerText",function(s){
        return this.innerHTML=document.createTextNode(s);});
    __defineGetter__("innerText",function(){
        var r=this.ownerDocument.createRange();
        r.selectNodeContents(this);
        return r.toString();});

    __defineSetter__("outerText",function(s){
        void this.parentNode.replaceChild(document.createTextNode(s),this);
        return s});
    __defineGetter__("outerText",function(){
        var r=this.ownerDocument.createRange();
        r.selectNodeContents(this);
        return r.toString();});

    insertAdjacentElement=function(s,o){
        return (s=="beforeBegin"&&this.parentNode.insertBefore(o,this))||(s=="afterBegin"&&this.insertBefore(o,this.firstChild))||(s=="beforeEnd"&&this.appendChild(o))||(s=="afterEnd"&&((this.nextSibling)&&this.parentNode.insertBefore(o,this.nextSibling)||this.parentNode.appendChild(o)))||null;}

    insertAdjacentHTML=function(s,h){
        var r=this.ownerDocument.createRange();
        r.setStartBefore(this);
        this.insertAdjacentElement(s,r.createContextualFragment(h));}

    insertAdjacentText=function(s,t){
        this.insertAdjacentElement(s,document.createTextNode(t));}
}
//XMLDOM兼容
window.ActiveXObject=function(s){
    switch(s){
        case "XMLDom":
        document.implementation.createDocument.call(this,"text/xml","", null);
        //domDoc = document.implementation.createDocument("text/xml","", null);
        break;
        }
    }

XMLDocument.prototype.LoadXML=function(s){
    for(var i=0,cs=this.childNodes,cl=childNodes.length;i        this.removeChild(cs[i]);
    this.appendChild(this.importNode((new DOMParser()).parseFromString(s,"text/xml").documentElement,true));}

XMLDocument.prototype.selectSingleNode=Element.prototype.selectSingleNode=function(s){
    return this.selectNodes(s)[0];}
XMLDocument.prototype.selectNodes=Element.prototype.selectNodes=function(s){
    var rt=[];
    for(var i=0,rs=this.evaluate(s,this,this.createNSResolver(this.ownerDocument==null?this.documentElement:this.ownerDocument.documentElement),XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null),sl=rs.snapshotLength;i        rt.push(rs.snapshotItem(i));
    return rt;}

XMLDocument.prototype.__proto__.__defineGetter__("xml",function(){
    try{
        return new XMLSerializer().serializeToString(this);}
    catch(e){
        return document.createElement("div").appendChild(this.cloneNode(true)).innerHTML;}});
Element.prototype.__proto__.__defineGetter__("xml",function(){
    try{
        return new XMLSerializer().serializeToString(this);}
    catch(e){
        return document.createElement("div").appendChild(this.cloneNode(true)).innerHTML;}});

XMLDocument.prototype.__proto__.__defineGetter__("text",function(){
    return this.firstChild.textContent;});

Element.prototype.__proto__.__defineGetter__("text",function(){
    return this.textContent;});
Element.prototype.__proto__.__defineSetter__("text",function(s){
    return this.textContent=s;});

}