在显示页面之前加载图片和音乐

JScript code

//(function(){var LoadManager=function(){    this.resource;    this.loaded=0;    this.total;    this.finish=false;    this.percent=0;    this.image=[];   //存储载入的所有图片，其下表为其ID号    this.audio=[];    this.img;      //用于临时存储图片    this.ado;    this.id;};LoadManager.prototype._load=function(props){    var id,type,size,src;    for(i in props)    {        if(i=="id")           this.id=id=props[i];        if(i=="type")           type=props[i];        if(i=="size")           size=props[i];        if(i=="src")           src=props[i];    }    if(type=="img")    {        this.img = new Image();        this.img.addEventListener("loaded", this._imgLoadedCallBack, false);        this.img.src=src;    }        else if(type=="audio")    {        this.ado = new Audio(src);        this.ado.addEventListener("canplay", this._audioCanplayCallBack, false);        this.ado.addEventListener("error", this._audioErrorCallBack, false);        this.ado.load();            }};LoadManager.prototype._imgLoadedCallBack=function(){    this.image[this.id]=this.img;    this.loaded++;    this.percent=this.loaded/this.total*100;    if(this.percent==100)       this.finish=true;};LoadManager.prototype._audioCanplayCallBack=function(){    this.audio[this.id]=this.ado;    this.imgLoadedCallBack();};LoadManager.prototype.loadAll=function(r){     //此处要求传入一个对象数组  其结构为 id  type  size  src ,id号是所有资源的唯一标识    this.resource=r;    this.total=this.resource.length;    for(var i=0;i<this.resource.length;i++)    {        this._load(this.resource[i]);    }};

[解决办法]
在页面显示之前还没有页面元素呢怎么加载
[解决办法]
页面元素肯定要先加载
[解决办法]
一 你可以在加载前display: none;整个document
二 你可以把img放到body最开头 等img onload后再删除img元素 再把下面的元素加载 之前的图片浏览器加载过应该有缓存 就不用担心重新载入的速度

其实不太清楚你想做什么
[解决办法]

JScript code

(function(){        var ImageLoader = function(images,loading,complete){    /*     *  images数据格式如下[{id:img1,src:image1.jpg,size:34},{id:img2,src:image2.jpg,size:50}]     */        this.countTotal = images.length;        this.img = [];        this.images = images;        this.loading = loading;        this.complete = complete;        for(var i = 0;i < this.countTotal;i++){            var imgObj = new Image();            this.img.push(imgObj);        }        this.loadingIndex = 0;    }    ImageLoader.prototype.startLoader = function(){            this._loadNext(this.loadingIndex);    }        ImageLoader.prototype._loadNext = function(index){        this.img[index].src = this.images[index].src;        var self = this;        this.img[index].onload = function(){            self.loading(this);            if(self.loadingIndex < self.countTotal-1){                self.loadingIndex++;                self._loadNext(self.loadingIndex);            }else{                    self.complete();            }        }    }    window['ImageLoader'] = ImageLoader;}());