错在哪里呢? <script language="JavaScript" type="text/JavaScript"> function go(){ if (form1.test.selected==1){ alert ("1") }</script> 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 <script language="JavaScript" type="text/JavaScript"> function go(){ //if (form1.test.value==1){ alert (form1.test.options[0].value) //}</script><BODY><form name="form1" method="post" action="test.php"><SELECT NAME="test" onchange="go()"> <option value="1">alfred</option> <option value="2">nomad</option> </SELECT></form> <script language="JavaScript" type="text/JavaScript">function go(){ if (form1.test.value==2){ alert (form1.test.value) }}</script><BODY><form name="form1" method="post" action="test.php"><SELECT NAME="test" onchange="go()"> <option value="1">1</option> <option value="2">2</option> </SELECT></form></body> try this:<script language="JavaScript" type="text/JavaScript">function go(){ if (form1.test.value==1){ form1.d2.disabled=false form1.d3.disabled=true } else if(form1.test.value==2) { form1.d3.disabled=false form1.d2.disabled=true }}</script><BODY><form name="form1" method="post" action="test.php"><SELECT NAME="test" onchange="go()"> <option selected>please select</option> <option value="1">1</option> <option value="2">2</option> </SELECT> <select size="1" name="d2"> <option>231</option> <option>321312</option></select> <select size="1" name="d3"> <option>312321321</option> <option>312312312</option> <option>asddasd</option></select></form></body> form1.test.value 错误! ==》form1.test.options[form1.test.selectedIndex].text js中如何使用$ 还得请大家帮忙 jquery 关于ajax提问 动态加载梅花雪树1.0的子节点 探讨js广告代码转换的另类做法 你好,一直很喜欢你的梅花雨日期时间控件,最近项目在Firefox下使用,请问又没有兼容FF的版本呢? 有不用层实现maromedia.com网站上的导航吗? 有点难度的问题??紧急求助!!! 请问有人知道有方法屏蔽IE上的“后退”键吗? 请问密码验证的悬浮窗怎么做出来的 当页面被刷新时,js1.js会不会被重新下载 一个页面上有向个同名checkbox复选框要如何同时选中!!(在线)
function go(){
//if (form1.test.value==1){
alert (form1.test.options[0].value)
//}
</script>
<BODY>
<form name="form1" method="post" action="test.php">
<SELECT NAME="test" onchange="go()">
<option value="1">alfred</option>
<option value="2">nomad</option>
</SELECT>
</form>
function go(){
if (form1.test.value==2){
alert (form1.test.value)
}
}
</script>
<BODY>
<form name="form1" method="post" action="test.php">
<SELECT NAME="test" onchange="go()">
<option value="1">1</option>
<option value="2">2</option>
</SELECT>
</form>
</body>
function go(){
if (form1.test.value==1){
form1.d2.disabled=false
form1.d3.disabled=true
}
else if(form1.test.value==2)
{
form1.d3.disabled=false
form1.d2.disabled=true
}
}
</script>
<BODY>
<form name="form1" method="post" action="test.php">
<SELECT NAME="test" onchange="go()">
<option selected>please select</option>
<option value="1">1</option>
<option value="2">2</option>
</SELECT>
<select size="1" name="d2">
<option>231</option>
<option>321312</option>
</select>
<select size="1" name="d3">
<option>312321321</option>
<option>312312312</option>
<option>asddasd</option>
</select></form>
</body>
form1.test.options[form1.test.selectedIndex].text