function resetAvatar(imgSrc){    var avImg = document.getElementById("avatar-img");    avImg.src=imgSrc;    var docObj=document.getElementById("fileInput");    var imgObjPreview=document.getElementById("avatar-img");    if(docObj.files &&docObj.files[0])//如果文档文件对象有效    {        imgObjPreview.style.display = 'block';        imgObjPreview.style.width = '162px';        imgObjPreview.style.height = '162px';//imgObjPreview.src = docObj.files[0].getAsDataURL();//火狐7以上版本不能用上面的getAsDataURL()方式获取，需要一下方式        imgObjPreview.src = window.URL.createObjectURL(docObj.files[0]);    }    else    {//IE下，使用滤镜        docObj.select();        var imgSrc = document.selection.createRange().text;        var localImagId = document.getElementById("localImag");//必须设置初始大小        localImagId.style.width = "150px";        localImagId.style.height = "180px";//图片异常的捕捉，防止用户修改后缀来伪造图片        try{            localImagId.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)";            localImagId.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgSrc;        }        catch(e)        {            alert("您上传的图片格式不正确，请重新选择!");            return false;        }        imgObjPreview.style.display = 'none';        document.selection.empty();    }    return true;}