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當我添加javascript時，我需要有關選項菜單無法正常工作的幫助。當我添加JavaScript功能時，選項菜單無法正常工作
我找到了這種類型的下拉菜單的教程和菜單/下拉功能正在工作，除了我不能讓它做我需要什麼時，選擇一個選項。
當選擇「不可用」時，我想在菜單下打開2個div。我的代碼適用於不使用下面第一個示例中的JavaScript代碼的常規選項菜單，但在嘗試向此菜單中添加其他功能代碼時，它不起作用。有一些我沒有看到或理解的JavaScript使菜單工作。
這裏是原代碼：
<!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>Untitled Document</title>
<style>
/*Form*/
* {
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
form > div {
clear: both;
overflow: hidden;
padding: 1px;
margin: 0;
}
input[type=text]:focus, input[type=email]:focus, input[type=url]:focus, input[type=password]:focus, textarea:focus {
outline: 0;
border: #f76e00 1px solid;
}
/*Dropdown*/
#dropdown {
background-color: #d8f3ff;
width: 100%;
padding: 10px;
text-align: left;
}
#dropdown2 {
background-color: #eaeaea;
width: 100%;
padding: 10px;
text-align: left;
}
#dropdown3 {
background-color: #d8f3ff;
width: 100%;
padding: 10px;
text-align: left;
}
.dropcont {
position: relative;
font-size: 12px;
color: #666;
text-decoration: none;
text-align: left;
}
.trigger {
color: #666;
padding: 10px;
font-size: 12px;
width: 100%;
background: #fff url(../images/select-arrow-open.png) 98% center no-repeat;
display: block;
border: 1px solid #ccc;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
transition: all 0.5s ease;
text-decoration: none;
text-align: left;
}
.trigger:hover {
color: #666;
background: #f5f5f5 url(../images/select-arrow-open.png) 98% center no-repeat;
border: #f76e00 1px solid;
text-decoration: none;
text-align: left;
}
.activetrigger {
color: #666;
padding: 10px;
font-size: 12px;
width: 100%;
background: #f5f5f5 url(../images/select-arrow-close.png) 98% center no-repeat;
display: block;
border: #f76e00 1px solid;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
text-decoration: none;
text-align: left;
}
.activetrigger:hover {
background: #f5f5f5 url(../images/select-arrow-close.png) 98% center no-repeat;
color: #666;
text-decoration: none;
}
.activetrigger:active {
background: #f5f5f5 url(../images/select-arrow-close.png) 98% center no-repeat;
color: #666;
text-decoration: none;
}
.dropcont ul {
font-size: 12px;
border: #f76e00 1px solid;
border-top: none;
background: #fff;
list-style-type: none;
padding: 10px;
margin: 0;
width: 100%;
z-index: 100;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
text-decoration: none;
text-align: left;
}
.dropcont ul li {
padding: 5px;
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
transition: all 0.5s ease;
text-decoration: none;
text-align: left;
}
.dropcont ul li:hover {
background: #f5f5f5;
outline: none;
text-decoration: none;
}
.dropcont ul li:first-child {
display: none;
}
.dropcont ul li:last-child {
border-bottom: none;
}
.dropdownhidden {
display: none;
}
.dropdownvisible {
height: auto;
}
.dropdownvisible {
height: 100px;
overflow-y: scroll;
text-decoration: none;
text-align: left;
}
.label {
color: #666;
font-size: 12px;
margin-bottom: 5px;
display: block;
text-align: left;
}
a {
color: #666;
text-decoration: none;
}
a:hover {
color: #f76e00;
}
/* Navigation */
nav ul {
padding: 0 20px;
}
nav li {
list-style: none;
float: left;
margin-right: 20px;
padding: 10px;
font-weight: 300;
}
nav li.current {
background: #f5f5f5;
border: 1px solid #ccc;
border-bottom: none;
}
nav li.current a {
color: #777;
cursor: default;
}
#audiobook {
position: relative;
height: 200px;
width: 100%;
background-color: #6FF;
}
</style>
<script>
function tamingselect()
{
if(!document.getElementById && !document.createTextNode){return;}
// Classes for the link and the visible dropdown
var ts_selectclass='turnintodpdn'; // class to identify selects
var ts_listclass='turnintoselect'; // class to identify ULs
var ts_boxclass='dropcont'; // parent element
var ts_triggeron='activetrigger'; // class for the active trigger link
var ts_triggeroff='trigger'; // class for the inactive trigger link
var ts_dropdownclosed='dropdownhidden'; // closed dropdown
var ts_dropdownopen='dropdownvisible'; // open dropdown
/*
Turn all selects into DOM dropdowns
*/
var count=0;
var toreplace=new Array();
var sels=document.getElementsByTagName('select');
for(var i=0;i<sels.length;i++){
if (ts_check(sels[i],ts_selectclass))
{
var hiddenfield=document.createElement('input');
hiddenfield.name=sels[i].name;
hiddenfield.type='hidden';
hiddenfield.id=sels[i].id;
hiddenfield.value=sels[i].options[0].value;
sels[i].parentNode.insertBefore(hiddenfield,sels[i])
var trigger=document.createElement('a');
ts_addclass(trigger,ts_triggeroff);
trigger.href='#';
trigger.onclick=function(){
ts_swapclass(this,ts_triggeroff,ts_triggeron)
ts_swapclass(this.parentNode.getElementsByTagName('ul')[0],ts_dropdownclosed,ts_dropdownopen);
return false;
}
trigger.appendChild(document.createTextNode(sels[i].options[0].text));
sels[i].parentNode.insertBefore(trigger,sels[i]);
var replaceUL=document.createElement('ul');
for(var j=0;j<sels[i].getElementsByTagName('option').length;j++)
{
var newli=document.createElement('li');
var newa=document.createElement('a');
newli.v=sels[i].getElementsByTagName('option')[j].value;
newli.elm=hiddenfield;
newli.istrigger=trigger;
newa.href='#';
newa.appendChild(document.createTextNode(
sels[i].getElementsByTagName('option')[j].text));
newli.onclick=function(){
this.elm.value=this.v;
ts_swapclass(this.istrigger,ts_triggeron,ts_triggeroff);
ts_swapclass(this.parentNode,ts_dropdownopen,ts_dropdownclosed)
this.istrigger.firstChild.nodeValue=this.firstChild.firstChild.nodeValue;
return false;
}
newli.appendChild(newa);
replaceUL.appendChild(newli);
}
ts_addclass(replaceUL,ts_dropdownclosed);
var div=document.createElement('div');
div.appendChild(replaceUL);
ts_addclass(div,ts_boxclass);
sels[i].parentNode.insertBefore(div,sels[i])
toreplace[count]=sels[i];
count++;
}
}
/*
Turn all ULs with the class defined above into dropdown navigations
*/
var uls=document.getElementsByTagName('ul');
for(var i=0;i<uls.length;i++)
{
if(ts_check(uls[i],ts_listclass))
{
var newform=document.createElement('form');
var newselect=document.createElement('select');
for(j=0;j<uls[i].getElementsByTagName('a').length;j++)
{
var newopt=document.createElement('option');
newopt.value=uls[i].getElementsByTagName('a')[j].href;
newopt.appendChild(document.createTextNode(uls[i].getElementsByTagName('a')[j].innerHTML));
newselect.appendChild(newopt);
}
newselect.onchange=function()
{
window.location=this.options[this.selectedIndex].value;
}
newform.appendChild(newselect);
uls[i].parentNode.insertBefore(newform,uls[i]);
toreplace[count]=uls[i];
count++;
}
}
for(i=0;i<count;i++){
toreplace[i].parentNode.removeChild(toreplace[i]);
}
function ts_check(o,c)
{
return new RegExp('\\b'+c+'\\b').test(o.className);
}
function ts_swapclass(o,c1,c2)
{
var cn=o.className
o.className=!ts_check(o,c1)?cn.replace(c2,c1):cn.replace(c1,c2);
}
function ts_addclass(o,c)
{
if(!ts_check(o,c)){o.className+=o.className==''?c:' '+c;}
}
}
window.onload=function()
{
tamingselect();
// add more functions if necessary
}
</script>
</head>
<body>
<div id="dropdown2">
<form action="">
<label class="label">What is cost?</label>
<select class="turnintodpdn">
<option>This is:</option>
<option value="1">Free</option>
<option value="2">Not free</option>
</select>
</form>
</div>
</body>
</html>
在該文件的頭我加入這個：
<script>
function NotFreeSelectCheck(nfSelect)
{
if(nfSelect){
slctOptionValue = document.getElementById("slctOption").value;
if(slctOptionValue == nfSelect.value){
document.getElementById("NotFreeDivCheck").style.display = "block";
document.getElementById("ppaddrss").style.display = "block";
}
else{
document.getElementById("NotFreeDivCheck").style.display = "none";
document.getElementById("ppaddrss").style.display = "none";
}
}
else{
document.getElementById("NotFreeDivCheck").style.display = "none";
document.getElementById("ppaddrss").style.display = "none";
}
}
</script>
這裏是更新的HTML：
<div id="dropdown2">
<form action="">
<label class="label">What is cost?</label>
<select class="turnintodpdn" id="getFvalue" onchange="NotFreeSelectCheck(this);">
<option>This is:</option>
<option value="1">Free</option>
<option id="slctOption" value="2">Not free</option>
</select>
</form>
</div>
<div id="NotFreeDivCheck" style="display:none;">
Price field
</div>
<div id="ppaddrss" style="display:none;">
Payment Address
</div>
無不管我做什麼，當菜單中選擇「不可用」時，如果添加了jav，我無法打開div。第一個代碼示例中的ascript。如果我從第一個示例中刪除樣式和JavaScript函數，並將菜單設爲普通菜單，則代碼將工作，並顯示div「NotFreeDivCheck」和「ppaddrss」。我需要做些什麼來完成這項工作？
只是要清楚，你可以看到，這個代碼工作，如果從第一個例子中的JavaScript被刪除：
<!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>Untitled Document</title>
<script>
function NotFreeSelectCheck(nfSelect)
{
if(nfSelect){
slctOptionValue = document.getElementById("slctOption").value;
if(slctOptionValue == nfSelect.value){
document.getElementById("NotFreeDivCheck").style.display = "block";
document.getElementById("ppaddrss").style.display = "block";
}
else{
document.getElementById("NotFreeDivCheck").style.display = "none";
document.getElementById("ppaddrss").style.display = "none";
}
}
else{
document.getElementById("NotFreeDivCheck").style.display = "none";
document.getElementById("ppaddrss").style.display = "none";
}
}
</script>
</head>
<body>
<div id="dropdown2">
<form action="">
<label class="label">What is cost?</label>
<select id="getFvalue" onchange="NotFreeSelectCheck(this);">
<option>This is:</option>
<option value="1">Free</option>
<option id="slctOption" value="2">Not free</option>
</select>
</form>
</div>
<div id="NotFreeDivCheck" style="display:none;"> Price field </div>
<div id="ppaddrss" style="display:none;"> Payment Address </div>
</body>
</html>
請幫助和感謝！
哇，我知道，我從來沒有見過，在一個崗位多的代碼之前。請儘可能簡潔。你只需要添加能夠複製問題的代碼，而且很多代碼似乎都不相關。此外，圖片或實時鏈接會很好，以便我們更清楚地知道[瞄準/修復]。 – jaunt
製作一個複製問題的jsfiddle。 – loli