function uploadWindow(attrId,productId,index){ 
         
            var html = "<div class='fitem'><form id='upload' method='post' enctype='multipart/form-data'>" 
                html += "<input type='hidden' value='"+attrId+"' name='productAttrId'>"; 
                html += "<input type='hidden' value='"+productId+"' name='productId'>"; 
                html += "选择图片：<input type='file' id='file' name='productPic'>"; 
                html += "<a class='easyui-linkbutton l-btn l-btn-plain'   iconcls='icon-ok' href='#'>"; 
                html += "<span>"; 
                html += "<span class='l-btn-text icon-ok' onclick='upload("+index+")' style='padding-left: 20px;'>保存</span></span></a>"; 
                html += "</form></div>"; 
            var msgw,msgh,bordercolor;   
            msgw=400;//提示窗口的宽度  
            msgh=400;//提示窗口的高度  
            titleheight=1 //提示窗口标题高度  
            bordercolor="#99BBE8";//提示窗口的边框颜色  
            titlecolor="#c51100";//提示窗口的标题颜色  
              
            var sWidth,sHeight;   
            sWidth=screen.width;   
            sHeight=screen.height;   
            var bgObj=document.createElement("div");   
            bgObj.setAttribute('id','bgDiv');   
            bgObj.style.position="absolute";   
            bgObj.style.top="0";   
            bgObj.style.left="0";   
            bgObj.style.width=sWidth + "px";   
            bgObj.style.height=sHeight + "px";   
            bgObj.style.zIndex = "10000";   
            document.body.appendChild(bgObj);   
              
            var msgObj=document.createElement("div")   
            msgObj.setAttribute("id","msgDiv");   
            msgObj.setAttribute("align","center");   
            msgObj.style.background="white";   
            msgObj.style.border="1px solid " + bordercolor;   
            msgObj.style.position = "absolute";   
            msgObj.style.left = "50%";   
            msgObj.style.top = "30%";   
            msgObj.style.font="12px/1.6em Verdana, Geneva, Arial, Helvetica, sans-serif";   
            msgObj.style.marginLeft = "-225px" ;   
            msgObj.style.marginTop = -75+document.documentElement.scrollTop+"px";   
            msgObj.style.width = msgw + "px";   
            msgObj.style.height =msgh + "px";   
            msgObj.style.textAlign = "center";   
            msgObj.style.lineHeight ="25px";   
            msgObj.style.zIndex = "10001";   
              
            var title=document.createElement("h4");   
            title.setAttribute("id","msgTitle");   
            title.setAttribute("align","right");   
            title.style.margin="0";   
            title.style.padding="3px";   
            title.style.background=bordercolor;   
            title.style.border="1px solid " + bordercolor;   
            title.style.height="18px";   
            title.style.font="12px Verdana, Geneva, Arial, Helvetica, sans-serif";   
            title.style.color="white";   
            title.style.cursor="pointer";   
            title.innerHTML="关闭";   
            title.onclick=function(){   
            document.body.removeChild(bgObj);   
            document.getElementById("msgDiv").removeChild(title);   
            document.body.removeChild(msgObj);   
            }   
            document.body.appendChild(msgObj);   
            document.getElementById("msgDiv").appendChild(title);   
            var txt=document.createElement("p");   
            txt.style.margin="1em 0" 
            txt.setAttribute("id","msgTxt");   
            txt.innerHTML=html;   
            document.getElementById("msgDiv").appendChild(txt);   
                 
        }