<!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" /> <title></title> <script> <!-- var onecount; onecount=0; subcat = new Array(); subcat[0] = new Array("CPU","产品"); subcat[1] = new Array("主板","产品"); subcat[2] = new Array("内存","产品"); subcat[3] = new Array("硬盘","产品"); subcat[4] = new Array("显示卡","产品"); subcat[5] = new Array("周边配件","产品");
<!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" />
<title></title>
<script>
<!--
var onecount;
onecount=0;
subcat = new Array();
subcat[0] = new Array("CPU","产品");
subcat[1] = new Array("主板","产品");
subcat[2] = new Array("内存","产品");
subcat[3] = new Array("硬盘","产品");
subcat[4] = new Array("显示卡","产品");
subcat[5] = new Array("周边配件","产品");
subcat[6] = new Array("Javascript","程式");
subcat[7] = new Array("CSS","程式");
subcat[8] = new Array("Flash","程式");
subcat[9] = new Array("ASP","程式");
subcat[10] = new Array("HTML","程式");onecount=11;function changelocation(locationid)
{
document.myform.sType.length = 0;
var locationid=locationid;
var i;
document.myform.sType.options[0] = new Option('==== 请 选 择 ====','');
for (i=0;i < onecount; i++)
{
if (subcat[i][1] == locationid)
{
document.myform.sType.options[document.myform.sType.length] = new Option(subcat[i][0], subcat[i][2]);
}
}
doit()
}
function doit(){
var f = document.myform
document.getElementById("a").style.display = (f.sType.options[f.sType.selectedIndex].text=="硬盘" && f.sPlace.options[f.sPlace.selectedIndex].text=="产品")? "block":"none"
}
//-->
</script>
</head><body>
<form method="post" name="myform">
<table border="0" cellpadding="0" align="center">
<tr>
<td>日 期:</td>
<td><input type="text" value=""/></td>
</tr> <tr>
<td>选择产品:</td>
<td><select name="sPlace" id="" class="borderoption" onChange="changelocation(document.myform.sPlace.options[document.myform.sPlace.selectedIndex].value);">
<option value="">==== 请 选 择 ====</option>
<option value="产品">产品</option>
<option value="程式">程式</option>
</select></td>
</tr> <tr>
<td>产品内容:</td>
<td>
<select name="sType" onchange="doit()">
<option value="">==== 请 选 择 ====</option>
</select>
</td>
</tr> <tr>
<td colspan="2"><div id="a" style="display:none;">
产品1: <input id="input1" name="input1" type="text" value=""><br />
产品2: <input id="input2" name="input2" type="text" value=""><br />
产品3: <input id="input3" name="input3" type="text" value="">
</div>
</td>
</tr> <tr>
<td colspan="2" align="center">
<input type="button" value="送出" id="myButton"/>
<input type="reset" value="重做">
</td>
</tr>
</table>
</form>
</body>
</html>