想用js做下拉框和文本框联动，为什么无法改变文本框的值呢？

[hzsuper2009]

代码如下，用改变下拉框的值，就会让文本框显示下拉框的值，但是总是不能实现，不知道出错在哪里，请高手帮忙啊！！
<form name = "form1" method="POST" action = "">
<table border>
<%For i=0 To 5%>
<tr><td><input type="text" name="mpps<%=i%>" value="" disabled></td><td><input type="text" name ="mpps1<%=i%>" size="20"></td>
<td><select name="xn" onChange="change(this.value,<%=i%>)">
<option value ="a">a</option>
<option value ="b">b</option>
<option value ="c">c</option>
<option value ="d">d</option>
</select></td>
<%next%>
</table>
<p><input type="submit" value="追加" name ="insert">
</form>
</body>
</html>
<script language="javascript">

function change(values,line)
{
var text;
text="mpps"+line;
form1.text.value=values;

}

</script>

[hzsuper2009]

在线等，谢谢帮忙

[hzsuper2009]

真的没有人知道吗？

[hzsuper2009]

是不是字符串有问题啊

[lzp4881]

http://hi.baidu.com/lz0830/blog/item/824674ef8326f0e6cf1b3e26.html

[ninja]

<form name = "form1" method="POST" action = "">
<table border>
<%For i=0 To 5%>
<tr> <td> <input type="text" id="mpps<%=i%>" name="mpps<%=i%>" value="" disabled> </td> <td> <input type="text" id="mpps1<%=i%>" name ="mpps1<%=i%>" size="20"> </td>
<td> <select name="xn" onChange="change(this.value,<%=i%>)">
<option value ="a">a </option>
<option value ="b">b </option>
<option value ="c">c </option>
<option value ="d">d </option>
</select> </td>
<%next%>
</table>
<p> <input type="submit" value="追加" name ="insert">
</form>
</body>
</html>
<script language="javascript">

function change(values,line)
{
var obj=eval('document.getElementById("mpps'+line+'")');
obj.value=values;
}

</script>


记得给分哦！