求救：弹出窗口不显示图片

Question

各位大虾：怎样才能实现弹窗显示我的特定图片啊，我想点击小图片然后以弹窗的形式显示我的大图片，程序不知道怎么改了，烦劳各位帮忙瞧瞧。
我把程序贴上来了 <script type="text/javascript">
  function PhotoShow(){
   var imgPath=this.url;//取得弹出的大图url
   var tagTop=Math.max(document.documentElement.scrollTop,document.body.scrollTop);
   var tag=document.createElement("div");
    tag.style.cssText="width:100%;height:"+Math.max(document.body.clientHeight,document.body.offsetHeight)+"px;position:absolute;background:white;top:0;filter: Alpha(Opacity=80);Opacity:0.8;";
    tag.ondblclick=function(){var clsOK=confirm("确定要取消图片显示吗?"); if(clsOK){closes();}};
   var tagImg=document.createElement("div");
    tagImg.style.cssText="font:12px /18px verdana;overflow:auto;text-align:center;position:absolute;width:200px;border:5px solid gray;background:gray;color:white;left:"+(parseInt(document.body.offsetWidth)/2-100)+"px;top:"+(document.documentElement.clientHeight/3+tagTop)+"px;"
    tagImg.innerHTML="<div style='padding:10px;background:#cccccc;border:1px solid white'><img src='http://bbs.blueidea.com/attachment.php?aid=91156&noupdate=yes' /><br /><br /><b style='color:#999999;font-weight:normal'>Image loading...</b><br /></div>";
   var closeTag=document.createElement("div");
    closeTag.style.cssText="display:none;position:absolute;left:10px;top:10px;background:red;border:1px solid white;yellow:white;filter:Alpha(Opacity=50);Opacity:0.5;cursor:pointer;";
    closeTag.innerHTML="<b> 关闭 </b>";
    closeTag.onclick=closes;
   document.body.appendChild(tag);
   document.body.appendChild(tagImg);
   var img=new Image();
    img.src=imgPath;
    img.style.cssText="border:1px solid #cccccc;filter: Alpha(Opacity=0);Opacity:0;";
    tagImg.oncontextmenu=function(){var clsOK=confirm("确定要取消图片显示吗?"); if(clsOK){closes();};return false};
   var barShow,imgTime;
   img.complete?ImgOK():img.onload=ImgOK;
   function ImgOK(){
    var Stop1=false,Stop2=false,temp=0;
    var tx=tagImg.offsetWidth,ty=tagImg.offsetHeight;
    var ix=img.width,iy=img.height;
    var sx=document.documentElement.clientWidth,sy=Math.min(document.documentElement.clientHeight,document.body.clientHeight/*opera*/);
    var xx=ix>sx?sx-50:ix+4,yy=iy>sy?sy-50:iy+3;
    var maxTime=setInterval(function(){
     temp+=35;
     if((tx+temp)<xx){
      tagImg.style.width=(tx+temp)+"px";
      tagImg.style.left=(sx-(tx+temp))/2+"px";
     }else{
      Stop1=true;
      tagImg.style.width=xx+"px";
      tagImg.style.left=(sx-xx)/2+"px";
     }
     if((ty+temp)<yy){
      tagImg.style.height=(ty+temp)+"px";
      tagImg.style.top=(tagTop+((sy-(ty+temp))/2))+"px";
     }else{
      Stop2=true;
      tagImg.style.height=yy+"px";
      tagImg.style.top=(tagTop+((sy-yy)/2))+"px";
     }
     if(Stop1&&Stop2){
      clearInterval(maxTime);
      tagImg.appendChild(img);
      temp=0;
      imgOPacity();
     }
    },1);
    function imgOPacity(){
     temp+=10;
     img.style.filter="alpha(opacity="+temp+")";
     img.style.opacity=temp/100;
     imgTime=setTimeout(imgOPacity,1)
     if(temp>100) clearTimeout(imgTime);
    }
    tagImg.innerHTML="";
    tagImg.appendChild(closeTag);
    if(ix>xx||iy>yy){
     img.alt="左键拖动,双击放大缩小";
     img.ondblclick=function (){
      if(tagImg.offsetWidth<img.offsetWidth||tagImg.offsetHeight<img.offsetHeight){
       img.style.width="auto";
       img.style.height="100%";
       img.alt="双击可以放大";
       img.onmousedown=null;
       closeTag.style.top="10px";
       closeTag.style.left="10px";
       tagImg.style.overflow="visible";
       tagImg.style.width=img.offsetWidth+"px";
       tagImg.style.left=((sx-img.offsetWidth)/2)+"px";
      }else{
       img.style.width=ix+"px";
       img.style.height=iy+"px";
       img.alt="双击可以缩小";
       img.onmousedown=dragDown;
       tagImg.style.overflow="auto";
       tagImg.style.width=xx+"px";
       tagImg.style.left=((sx-xx)/2)+"px";
      }
     }
     img.onmousedown=dragDown;
     tagImg.onmousemove=barHidden;
     tagImg.onmouseout=moveStop;
     document.onmouseup=moveStop;
    }else{
     tagImg.style.overflow="visible";
     tagImg.onmousemove=barHidden;
    }
   }
   function dragDown(a){
    img.style.cursor="pointer";
    var evts=a||window.event;
    var onx=evts.clientX,ony=evts.clientY;
    var sox=tagImg.scrollLeft,soy=tagImg.scrollTop;
    var sow=img.width+2-tagImg.clientWidth,soh=img.height+2-tagImg.clientHeight;
    var xxleft,yytop;
    document.onmousemove=function(e){
     var evt=e||window.event;
     xxleft=sox-(evt.clientX-onx)<0?"0":sox-(evt.clientX-onx)>sow?sow:sox-(evt.clientX-onx);
     yytop=soy-(evt.clientY-ony)<0?"0":soy-(evt.clientY-ony)>soh?soh:soy-(evt.clientY-ony);
     tagImg.scrollTop=yytop;
     tagImg.scrollLeft=xxleft;
     closeTag.style.top=(yytop+10)+"px";
     closeTag.style.left=(xxleft+10)+"px";
     return false;
    }
    return false;
   }
   function barHidden(){
    clearTimeout(barShow);
    if(closeTag.style.display=="none")closeTag.style.display="block";
    barShow=setTimeout(function(){closeTag.style.display="none";},2000);
   }
   function closes(){
    document.body.removeChild(tag);
    document.body.removeChild(tagImg);
    clearTimeout(barShow);
    clearTimeout(imgTime);
    document.onmouseup=null;
    tag=img=tagImg=closeTag=null;
   }
   function moveStop(){
    document.onmousemove=null;
    tagImg.onmousemove=barHidden;
    img.style.cursor="default";
   }
  }
 </script>
<div>
<img src="http://picpro.114my.cn/20092/19/2009021950093753.JPG"  onclick="PhotoShow.url='http://mfile.114my.cn/20092/17/200921717216.jpg' ;PhotoShow();" width="200" height="200"/>
</div>
注：单击src=""的图片显示PhotoShow.url=""的图片

Answer 1

现在问题是要怎么用单击src图片而取得PhotoShow.url得图片地址，有哪位能帮忙解决诶

Answer 2

<img id="theImage" src="http://img.baidu.com/img/logo-zhidao.gif" onclick="showPic(this)"/><script>
function showPic(img){
var picURL = img.src; //获取图片地址
alert(picURL);        //查看图片地址
window.open(picURL);  //新窗口打开此图片
}
</script>不知道是不是楼主想要的效果