因爲IE禁止JS調用file控件的提交，下面是一種實現方式。供大家參考。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
.file{
width:300px;height:80px;
position:relative;
}
.file_file{
width:300px;
filter:alpha(opacity=0);
opacity:0;
position:absolute;left:0px;top:0px;
z-index:10;
}
.file_txt{
width:240px;height:20px;
text-align:left;
border:1px #a8a8a8 solid;
position:absolute;left:0px;top:0px;
z-index:1;
font-size:12px;
white-space:nowrap;
overflow:hidden;
line-height:20px;
}
.file_button{
width:50px;height:22px;
background:#a8a8a8;
position:absolute;right:0px;top:0px;
z-index:1;
}
</style>
</head><body>
<form id="form1" name="form1" enctype="multipart/form-data" method="post" action="1.php">
<div class='file'>
<input type="file" class="file_file" id="file" onchange="setValue()"/>
<input type='text' class="file_txt" id='file_txt' />
<div class="file_button"><input type='button' id='file_txt' value="參照" /></div>
</div>
</form>
</body>
</html>