<form name="knight_chateanForm" method="POST" action="/Project/knight_chatean.do">
<select id="chatean" name="cbuildName"> knight_chatean_02<option value="0">15.精灵骑士城堡 等级 10</option>build<option value="1">16.空地</option>build<option value="2">17.空地</option>build<option value="3">18.空地</option>build<option value="4">19.空地</option>build<option value="5">20.空地</option>build<option value="6">21.空地</option>build<option value="7">22.空地</option>build<option value="8">23.空地</option>build<option value="9">24.空地</option>build<option value="10">25.空地</option>build<option value="11">26.空地</option>house<option value="12">27.民房 等级 1</option>build<option value="13">28.空地</option>build<option value="14">29.空地</option>build<option value="15">30.空地</option>build<option value="16">31.空地</option>build<option value="17">32.空地</option>build<option value="18">33.空地</option>rampart<option value="19">34.外部工地</option></select><input id="ccb" type="submit" value="提交">
</form>我想实现这么一个效果,当选择的option里面的值为空地或者外部工地的时候,按钮灰选,应该怎么做
<select id="chatean" name="cbuildName"> knight_chatean_02<option value="0">15.精灵骑士城堡 等级 10</option>build<option value="1">16.空地</option>build<option value="2">17.空地</option>build<option value="3">18.空地</option>build<option value="4">19.空地</option>build<option value="5">20.空地</option>build<option value="6">21.空地</option>build<option value="7">22.空地</option>build<option value="8">23.空地</option>build<option value="9">24.空地</option>build<option value="10">25.空地</option>build<option value="11">26.空地</option>house<option value="12">27.民房 等级 1</option>build<option value="13">28.空地</option>build<option value="14">29.空地</option>build<option value="15">30.空地</option>build<option value="16">31.空地</option>build<option value="17">32.空地</option>build<option value="18">33.空地</option>rampart<option value="19">34.外部工地</option></select><input id="ccb" type="submit" value="提交">
</form>我想实现这么一个效果,当选择的option里面的值为空地或者外部工地的时候,按钮灰选,应该怎么做
var selText = conSel.options[conSel.selectedIndex].text;
if(selText == "空地" || selText == "外部工地")
{
document.knight_chateanForm.ccb.disabled=true;
}
<head>
<title>City</title>
<script language="javascript">
function check(obj){
var oText = obj.options[obj.selectedIndex].text;
if(oText.indexOf('空地')>-1||oText.indexOf('外部工地')>-1){
document.getElementById('ccb').disabled =true;
}else{
document.getElementById('ccb').disabled =false;
}
}
</script>
</head><body>
<form name="knight_chateanForm" method="POST" action="/Project/knight_chatean.do">
<select id="chatean" name="cbuildName" onchange="check(this)"> knight_chatean_02<option value="0">15.精灵骑士城堡 等级 10</option>build<option value="1">16.空地</option>build<option value="2">17.空地</option>build<option value="3">18.空地</option>build<option value="4">19.空地</option>build<option value="5">20.空地</option>build<option value="6">21.空地</option>build<option value="7">22.空地</option>build<option value="8">23.空地</option>build<option value="9">24.空地</option>build<option value="10">25.空地</option>build<option value="11">26.空地</option>house<option value="12">27.民房 等级 1</option>build<option value="13">28.空地</option>build<option value="14">29.空地</option>build<option value="15">30.空地</option>build<option value="16">31.空地</option>build<option value="17">32.空地</option>build<option value="18">33.空地</option>rampart<option value="19">34.外部工地</option></select><input id="ccb" type="button" value="提交">
</form>
</body>
</html>
var selText = conSel.options[conSel.selectedIndex].text;
if(selText == "空地" || selText == "外部工地")
{
document.knight_chateanForm.ccb.disabled=true;
}else {
document.knight_chateanForm.ccb.disabled=false;
}