<script type="text/javascript">
function changelogo(logo_path)
{
    $('logo_show').src = logo_path;
}
</script>
<{assign var="thColor" value="#CCCCCC"}><{assign var="tbColor" value="#FFFFFFF"}>
<table align="center" width="90%">
<form action="<{$PHP_SELF}>" name="myform" method="post" enctype="multipart/form-data">
    <tr>
        <th width="22%" bgcolor="<{$thColor}>">LOGO</th>
        <td width="78%" bgcolor="<{$tbColor}>"><input type="file" name="logo_path" id="logo_path" onchange="changelogo(this.value);" value="<{$logo.logo_path}>" style="width:97%"/></td>
    </tr>
    <tr class="trcolor1">
        <td colspan="2" align="center"><input type="submit" id="sumb" value="修改" /><input type="hidden" name="action" id="action" value="modify" style="width:97%" /></td>
    </tr>
    <tr class="trcolor1">
        <td colspan="2" align="center"><img src="<{$logo.logo_path}>" id="logo_show"/></td>
    </tr>
</form>
</table>
<{include file="foot.htm"}>

文本框的值改变以后可以取到值，但为什么就是赋给不了下面的图片呢？

咱们的版主呢？？？？？？？？

直接输出在浏览器上显示的是你上传图片的本地路径啊，赋不了那个图片标签