1 <div id="divPreview">
2 <img id="imgHeadPhoto" src="Images/Headphoto/noperson.jpg" style="width: 160px; height: 170px;border: solid 1px #d2e2e2;" alt="" />
3 </div>
4 <input type="file" id="fuHeadPhoto" onchange="PreviewImage(this,'imgHeadPhoto','divPreview')">
5 <script type="text/javascript">
6 //js本地图片预览，兼容ie[6-9]、火狐、Chrome17+、Opera11+、Maxthon3、360浏览器
7 function PreviewImage(fileObj,imgPreviewId,divPreviewId){
8 var allowExtention=".jpg,.bmp,.gif,.png";//允许上传文件的后缀名document.getElementById("hfAllowPicSuffix").value;
9 var extention=fileObj.value.substring(fileObj.value.lastIndexOf(".")+1).toLowerCase();
10 var browserVersion= window.navigator.userAgent.toUpperCase();
11 if(allowExtention.indexOf(extention)>-1){
12 if(fileObj.files){//兼容chrome、火狐7+、360浏览器5.5+等，应该也兼容ie10，HTML5实现预览
13 if(window.FileReader){
14 var reader = new FileReader();
15 reader.onload = function(e){
16 document.getElementById(imgPreviewId).setAttribute("src",e.target.result);
17 }
18 reader.readAsDataURL(fileObj.files[0]);
19 }else if(browserVersion.indexOf("SAFARI")>-1){
20 alert("不支持Safari浏览器6.0以下版本的图片预览!");
21 }
22 }else if (browserVersion.indexOf("MSIE")>-1){//ie、360低版本预览
23 if(browserVersion.indexOf("MSIE 6")>-1){//ie6
24 document.getElementById(imgPreviewId).setAttribute("src",fileObj.value);
25 }else{//ie[7-9]
26 fileObj.select();
27 if(browserVersion.indexOf("MSIE 9")>-1)
28 fileObj.blur();//不加上document.selection.createRange().text在ie9会拒绝访问
29 var newPreview =document.getElementById(divPreviewId+"New");
30 if(newPreview==null){
31 newPreview =document.createElement("div");
32 newPreview.setAttribute("id",divPreviewId+"New");
33 newPreview.style.width = document.getElementById(imgPreviewId).width+"px";
34 newPreview.style.height = document.getElementById(imgPreviewId).height+"px";
35 newPreview.style.border="solid 1px #d2e2e2";
36 }
37 newPreview.style.filter="progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod='scale',src='" + document.selection.createRange().text + "')";
38 var tempDivPreview=document.getElementById(divPreviewId);
39 tempDivPreview.parentNode.insertBefore(newPreview,tempDivPreview);
40 tempDivPreview.style.display="none";
41 }
42 }else if(browserVersion.indexOf("FIREFOX")>-1){//firefox
43 var firefoxVersion= parseFloat(browserVersion.toLowerCase().match(/firefox\/([\d.]+)/)[1]);
44 if(firefoxVersion<7){//firefox7以下版本
45 document.getElementById(imgPreviewId).setAttribute("src",fileObj.files[0].getAsDataURL());
46 }else{//firefox7.0+
47 document.getElementById(imgPreviewId).setAttribute("src",window.URL.createObjectURL(fileObj.files[0]));
48 }
49 }else{
50 document.getElementById(imgPreviewId).setAttribute("src",fileObj.value);
51 }
52 }else{
53 alert("仅支持"+allowExtention+"为后缀名的文件!");
54 fileObj.value="";//清空选中文件
55 if(browserVersion.indexOf("MSIE")>-1){
56 fileObj.select();
57 document.selection.clear();
58 }
59 fileObj.outerHTML=fileObj.outerHTML;
60 }
61 }
62 </script>
