图片预览 -滤镜

<script language="JavaScript" type="text/javascript">
function PreviewImg(imgFile,view)
{
var newPreview = document.getElementById(view);
newPreview.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgFile.value;
newPreview.style.width = "80px";
newPreview.style.height = "80px";
}
</script>

<asp:FileUpload ID="FileUpload1" runat="server"  style="height:24px;" οnchange="PreviewImg(this,'Div1')"/>

<div id="Div1" style="filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)"></div>