上传图片前预览

<mce:style type="text/css"><!-- #newPreview { FILTER: progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale) } --></mce:style><style type="text/css" mce_bogus="1">#newPreview { FILTER: progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale) }</style> <td height="40" align="right"> 头像：</td> <td>  <asp:FileUpload ID="FileUpload1" runat="server" onchange="PreviewImg(this)" /> </td> <td> <div id="newPreview"></div> </td> <mce:script language="javascript" type="text/javascript"><!-- function PreviewImg(imgFile) { var newPreview = document.getElementById("newPreview"); newPreview.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgFile.value; newPreview.style.width = "80px"; newPreview.style.height = "60px"; } // --></mce:script>