我在一个表单上有 5 个下拉列表,在这些列表下面有需要用户输入的 DIV 元素。我为第一个下拉列表显示第一个 DIV,并使用 style="display: none;"隐藏所有其他表单。
我正在寻找一个 Javascript,当我从第二个下拉列表中选择任何选项时,它会显示第二个 DIV。
如有任何帮助,我们将不胜感激。
提前致谢, 瑞安·史密斯
<tr>
<td>Destination 1</td><td>Destination 2</td><td>Destination 3</td><td>Destination 4</td><td>Destination 5</td>
</tr>
<tr>
<td>
<SELECT NAME=drop1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionsdest?>
</SELECT>
</td>
<td>
<SELECT NAME=drop2 style="width:150px;" onChange="javascript to show DIV leg1b">
<OPTION VALUE=1><?=$optionsdest?>
</SELECT>
</td>
<td>
<SELECT NAME=drop3 style="width:150px;" onChange="javascript to show DIV leg1c">
<OPTION VALUE=0>0
<OPTION VALUE=1>1
</SELECT>
</td>
<td>
<SELECT NAME=drop4 style="width:150px;" onChange="javascript to show DIV leg1d">
<OPTION VALUE=0>
<?=$optionsdest?>
</SELECT>
</td>
<td>
<SELECT NAME=drop5 style="width:150px;" onChange="javascript to show DIV leg1e">
<OPTION VALUE=0>
<?=$optionsdest?>
</SELECT>
</td>
</tr>
<tr>
<td>
Arrive Drop 1
<br>
<input type="date" id="arrivedatetime1" name="arrivedatetime1" value=<?PHP echo $arrivedate ?>>
<br>
<SELECT NAME=arrivetime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
<br>
Depart Drop 1
<br>
<input type="date" id="departdatetime1" name="departdatetime1" value=<?PHP echo $departdate ?>>
<br>
<SELECT NAME=departtime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
</td>
<td>
<div id='legb1' style="display: none;">
Arrive Drop 2
<br>
<input type="date" id="arrivedatetime1" name="arrivedatetime1" value=<?PHP echo $arrivedate ?>>
<br>
<SELECT NAME=arrivetime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
<br>
Depart Drop 2
<br>
<input type="date" id="departdatetime1" name="departdatetime1" value=<?PHP echo $departdate ?>>
<br>
<SELECT NAME=departtime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
</div>
</td>
<td>
<div id='legc1' style="display: none;">
Arrive Drop 3
<br>
<input type="date" id="arrivedatetime1" name="arrivedatetime1" value=<?PHP echo $arrivedate ?>>
<br>
<SELECT NAME=arrivetime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
<br>
Depart Drop 3
<br>
<input type="date" id="departdatetime1" name="departdatetime1" value=<?PHP echo $departdate ?>>
<br>
<SELECT NAME=departtime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
</div>
</td>
<td>
<div id='legd1' style="display: none;">
Arrive Drop 4
<br>
<input type="date" id="arrivedatetime1" name="arrivedatetime1" value=<?PHP echo $arrivedate ?>>
<br>
<SELECT NAME=arrivetime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
<br>
Depart Drop 4
<br>
<input type="date" id="departdatetime1" name="departdatetime1" value=<?PHP echo $departdate ?>>
<br>
<SELECT NAME=departtime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
</div>
</td>
<td>
<div id='lege1' style="display: none;">
Arrive Drop 5
<br>
<input type="date" id="arrivedatetime1" name="arrivedatetime1" value=<?PHP echo $arrivedate ?>>
<br>
<SELECT NAME=arrivetime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
<br>
Depart Drop 5
<br>
<input type="date" id="departdatetime1" name="departdatetime1" value=<?PHP echo $departdate ?>>
<br>
<SELECT NAME=departtime1 style="width:150px;">
<OPTION VALUE=0>
<?=$optionstime?>
</SELECT>
</td>
</tr>
最佳答案
这是一个例子——我在选择中添加了与名称相同的 ID
http://jsfiddle.net/mplungjan/32Ukf/
纯 JS
var sels = {drop2:"legb1",drop3:"legc1",drop4:"legd1",drop5:"lege1"};
window.onload=function() {
for (var sel in sels) {
document.getElementById(sels[sel]).style.display = document.getElementById(sel).selectedIndex>0?"block":"none";
document.getElementById(sel).onchange=function() {
document.getElementById(sels[this.id]).style.display = this.selectedIndex>0?"block":"none";
}
}
}
关于从下拉列表中选择选项时显示隐藏的 div 的 Javascript,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8195134/