function tM(Message)
    {
        $("testMessage").innerHTML=Message
    }
    function dR(topr)
    {
        document.write(topr)
    }
    function $(eleId)
    {return document.getElementById(eleId)}
    //预载图片
    var imasrc=new Array("/newhouse/upload/jingkaihuayuan/h/h_1.jpg","/newhouse/upload/jingkaihuayuan/h/h_2.jpg","/newhouse/upload/jingkaihuayuan/h/h_3.jpg","/newhouse/upload/jingkaihuayuan/h/h_4.jpg")//图片路径写入数组
	
    var imatopic=new Array("","","","")//标题写入数组	
    var preIma=new Array()
    var dB=new Date()
    for (i=0;i < imasrc.length;i++)//预载所有图片
    {
        preLoadImg(i)
    }
    function preLoadImg(imgIndex)//预载指定图片图片
    {
        preIma[imgIndex]=new Image()
        preIma[imgIndex].imgReadyStatus=false
        preIma[imgIndex].imgIndex=imgIndex
        preIma[imgIndex].onload=imgLoad
        preIma[imgIndex].onerror=imgError
        preIma[imgIndex].onabort=imgAbort
        preIma[imgIndex].src=imasrc[imgIndex]
    }
    function imgLoad()//预载完成
    {
        this.imgReadyStatus=true
    }
    function imgError()//预载失败
    {
        preLoadImg(this.imgIndex)
    }
    function imgAbort()//预载取消
    {
        preIma.splice(this.imgIndex,1)
    }
    var checkAgain
    function checkImgReadyStatus()//检索加载状态
    {
        var imgReadyStatus=true
        var persent=0
        var dE=new Date()
        for (i=0;i < preIma.length;i++)
        {
            if (!preIma[i].imgReadyStatus)
            {imgReadyStatus=false}
            else
            {persent++}
        }
        tM("正在载入第:"+persent+"/"+preIma.length+"张图片 完成:"+(persent/preIma.length*100).toFixed(2)+"%" )//显示进度
        if (imgReadyStatus)
        {
            $("photoContrl").style.display="block"
			$("testMessage").style.display="none";
			play(0)
            clearTimeout(checkAgain)
        }
        else
        {
            checkAgain=setTimeout(checkImgReadyStatus,1000)//检索频率
        }
    }
    checkImgReadyStatus()
    
    //幻灯片效果
    var photoIndex=0//初始化图片索引
    var opacity=10//初始化透明度
    var direct="--"//初始化透明度矢量
    var doPlay//定义播放
    var doAutoPlay//定义自动播放
    function prevPhoto(){play(-1)}//前翻
    function nextPhoto(){play(1)}//后翻
    function autoPlay()//自动播放
    {
        if (doAutoPlay)
        {
            clearInterval(doAutoPlay)
            doAutoPlay=null
            //$("pp").innerHTML="Play"
        }
        else
        {
            play(1)
            doAutoPlay=setInterval("play(1)",3000)//定义自动播放频率
            //$("pp").innerHTML="Pause"
        }
    }
    function stopPlay()//停止播放
    {
        clearInterval(doAutoPlay)
        doAutoPlay=null
        photoIndex=0
        play(0)
        $("pp").innerHTML="Play"
    }
    function play(act)//执行动作
    {
        if (preIma.length!=0)
        {
            if (doPlay) {clearInterval(doPlay)}
            doPlay=setInterval(switchPhoto,10)
            photoIndex=(photoIndex+act+preIma.length)%preIma.length
			//$("pictopic").innerHTML=imatopic[photoIndex];
			$("pictopic").innerHTML=photoIndex+1+"/"+preIma.length
			
        }
    }
    function switchPhoto()//切换照片
    {
        eval("opacity"+direct)
        setOpa(opacity)
        if (opacity <= 1) 
        {
            direct="++"
            $("photo").src=preIma[photoIndex].src
			
			
        }
        else if (opacity >= 10)
        {
            direct="--"
            clearInterval(doPlay)
        }
    }
    function setOpa(opacity)//改变透明度
    {
        if ($("photo").style.filter!=null)
        {$("photo").style.filter="alpha(opacity="+opacity*10+")"}
        else
        {$("photo").style.opacity=opacity/10}
    }