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<%@ page contentType="text/html; charset=GB2312" pageEncoding="gb2312"%>
<html>
<head>
<title>POS</title>
</head>
<body bgproperties="fixed" onload="seleTypeChange()">
<form name="frm1" method="post">
<table>
<tr>
<td align="center" height="10">
操作类型:
</td>
<td align="left" height="10">
<select name="seleType" onchange="seleTypeChange();">
<option value="0">A</option>
<option value="1">B</option>
</select>
</td>
<td>
<input type="text" />
</td>
<td id="aaa">
<input type="button" value="Test"/>
</td>
<td id="bbb">
<input type="text" />
</td>
</tr>
</table>
<table>
<tr>
<td align="center" height="10">操作类型2:</td>
<td align="left" height="10">
<select name="seleType2" onchange="seleTypeChange2();">
<option value="0">C</option>
<option value="1">D</option>
</select>
</td>
</tr>
</table>
</form>
</body>
</html>
<script language="javascript">
function seleTypeChange()
{
//alert("document.seleType.value >> " + document.frm1.seleType.value);
if(document.frm1.seleType.value=="0")
{
aaa.style.display="none";
}
if(document.frm1.seleType.value=="1")
{
aaa.style.display="block";
bbb.style.display="block";
}
}
</script>
<body bgproperties="fixed" onload="seleTypeChange()">
<form name="frm1" method="post">
<table>
<tr>
<td align="center" height="10">
操作类型:
</td>
<td align="left" height="10">
<select name="seleType" onchange="seleTypeChange();">
<option value="0">A</option>
<option value="1">B</option>
</select>
</td>
<td>
<input type="text" />
</td>
<td id="aaa">
<input type="button" value="Test"/>
</td>
<td id="bbb">
<input type="text" />
</td>
</tr>
</table>
<table>
<tr>
<td align="center" height="10">操作类型2:</td>
<td align="left" height="10">
<select name="seleType2" onchange="seleTypeChange2();">
<option value="0">C</option>//删除D
</select>
</td>
</tr>
</table>
</form>
<script language="javascript">
function seleTypeChange()
{
//alert("document.seleType.value >> " + document.frm1.seleType.value);
if(document.frm1.seleType.value=="0")
{
aaa.style.visibility='hidden';
var op=document.createElement("option");
op.innerHTML='D';//添加D
document.frm1.seleType2.appendChild(op);
}
if(document.frm1.seleType.value=="1")
{ document.frm1.seleType2.options[1]=null;//删除D
aaa.style.visibility='visible';
bbb.style.visibility="visible";
}
}
</script>
</body>
function seleTypeChange()
{
//alert("document.seleType.value >> " + document.frm1.seleType.value);
if(document.frm1.seleType.value=="0")
{
aaa.style.visibility='hidden';
}
if(document.frm1.seleType.value=="1")
{
aaa.style.visibility='visible';
bbb.style.visibility="visible";
}
}
<script language="javascript">
function seleTypeChange()
{
//alert("document.seleType.value >> " + document.frm1.seleType.value);
if(document.frm1.seleType.value=="0")
{
aaa.style.visibility="hidden";
}
if(document.frm1.seleType.value=="1")
{
aaa.style.visibility="visible";
bbb.style.visibility="visible";
}
}
</script>