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Thread: change the page content by clicking on menu option

  1. #1
    Join Date
    Apr 2007
    Posts
    3

    change the page content by clicking on menu option

    Hi!
    My question: how to change the page content by clicking on menu option (without opening a new page) with javascript.
    I have written HTML and CSS code (menu), but i don't know how to start writing javascript code.
    Need just a little guidance.


    HTML Code:
    <div class="menu">
    
    <div id="nav">
            <ul>
                <li>
                <a href="http://"><font color="#000">AAAA</font></a>
                   
                </li>
    
                <li>
                <a href="http://">BBBB</a>
                    
                </li>
    
                <li>
                <a href="http://">CCCC</a>
                    
                </li>
    
                <li>
                <a href="http://">DDDD</a>
                 
                </li>
                 <li>
                <a href="http://">EEEE</a>
                    
                </li>
            </ul>
        </div>
       </div>
    
    HTML Code:
    .menu{
    position:absolute;
    top:80px;
    left:0px;
    font-family: Arial;
    font-size:12px;
    /*font-weight:bold;*/
    
    }
    
    #nav{
    width:920px;
    height:30px;
    
    background-color:#B1B3A8;
    
    }
    
    
    #nav ul
    {margin:0px; 
    padding:5px;
    
    }
    
    #nav ul li{
    display:inline; 
    height:30px; 
    float:left; 
    list-style:none;
    margin-left:30px; 
    position:relative;
    }
    
    
    #nav li a
    {color:#fff; text-decoration:none;}
    
    #nav li a:hover
    {text-decoration:underline;
     color:#fff;
    
    }
    

  2. #2
    Join Date
    Feb 2013
    Posts
    4
    I'm not good with JS but I think you can use getElementById and innerHTML to change page content. Or try using jQuery accordion?

  3. #3
    Join Date
    Dec 2005
    Location
    FL
    Posts
    7,443
    No need for jQuery for such a simple problem. Like using a sledge hammer to drive in a tack!
    Code:
    <!DOCTYPE HTML>
    <html>
    <head>
    <title> Untitled </title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <style type="text/css">
    .menu{
      position:absolute;
      top:80px;
      left:0px;
      font-family: Arial;
      font-size:12px;
      /*font-weight:bold;*/
    }
    #nav{
      width:920px;
      height:30px;
      background-color:#B1B3A8;
    }
    #nav ul {
      margin:0px; 
      padding:5px;
    }
    #nav ul li{
      display:inline; 
      height:30px; 
      float:left; 
      list-style:none;
      margin-left:30px; 
      position:relative;
    }
    #nav li a {color:#fff; text-decoration:none;}
    #nav li a:hover { text-decoration:underline; color:#fff; }
    
    .pg { display:none; }
    .h1 { text-align:center; font-size:2em; }
    </style>
    
    </head>
    <body>
    <form id="myForm" action="" method="post" onsubmit="return false">
    <div class="menu">
     <div id="nav">
      <ul>
       <li><a href="#" onclick="return toggle('pg0')"><font color="#000">AAAA</font></a></li>
       <li><a href="#" onclick="return toggle('pg1')"><font color="#000">BBBB</font></a></li>
       <li><a href="#" onclick="return toggle('pg2')"><font color="#000">CCCC</font></a></li>
       <li><a href="#" onclick="return toggle('pg3')"><font color="#000">DDDD</font></a></li>
       <li><a href="#" onclick="return toggle('pg4')"><font color="#000">EEEE</font></a></li>
      </ul>
     </div>
     <div id="pg">
      <div id="pg0" class="pg"> <h1 class="h1"> AAAA page </h1> </div>
      <div id="pg1" class="pg"> <h1 class="h1"> BBBB page </h1> </div>
      <div id="pg2" class="pg"> <h1 class="h1"> CCCC page </h1> </div>
      <div id="pg3" class="pg"> <h1 class="h1"> DDDD page </h1> </div>
      <div id="pg4" class="pg"> <h1 class="h1"> EEEE page </h1> </div>
     </div>
    </div>
    </form>
    <script type="text/javascript">
    function toggle(IDS) {
      var sel = document.getElementById('pg').getElementsByTagName('div');
      for (var i=0; i<sel.length; i++) { 
        if (sel[i].id != IDS) { sel[i].style.display = 'none'; }
      }
      var status = document.getElementById(IDS).style.display;
      if (status == 'block') { document.getElementById(IDS).style.display = 'none'; }
                        else { document.getElementById(IDS).style.display = 'block'; }
    
      return false;
    }
    </script>
    
    </body>
    </html>

  4. #4
    Join Date
    Dec 2005
    Location
    FL
    Posts
    7,443
    Just for fun, just a bit fancier...
    Code:
    <!DOCTYPE HTML>
    <!-- From: http://www.webdeveloper.com/forum/showthread.php?273153-change-the-page-content-by-clicking-on-menu-option#top -->
    <html>
    <head>
    <title> Untitled </title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <style type="text/css">
    .menu {
      position:absolute;
      top:80px;  left:0px;
      font-family: Arial;
      font-size:12px;
      font-weight:bold;
    }
    #nav { width:920px;  height:30px;  background-color:#B1B3A8; }
    #nav ul { margin:0px; padding:5px; }
    #nav ul li {
      display:inline; 
      height:30px; 
      float:left; 
      list-style:none;
      margin-left:30px; 
      position:relative;
      color:#000;
    }
    #nav li a { text-decoration:none; color:#000000; }
    #nav li a:hover { text-decoration:underline; color:white; background-color:orange; font-size:1.5em; }
    
    .pg { display:none; }
    .h1 { text-align:center; font-size:2em; }
    </style>
    
    </head>
    <body>
    <form id="myForm" action="" method="post" onsubmit="return false">
    <div class="menu">
     <div id="nav">
      <ul>
       <li><a href="#" onclick="return toggle('pg0')">AAAA</a></li>
       <li><a href="#" onclick="return toggle('pg1')">BBBB</a></li>
       <li><a href="#" onclick="return toggle('pg2')">CCCC</a></li>
       <li><a href="#" onclick="return toggle('pg3')">DDDD</a></li>
       <li><a href="#" onclick="return toggle('pg4')">EEEE</a></li>
      </ul>
     </div>
     <div id="pg">
      <div id="pg0" class="pg"> <h1 class="h1"> AAAA page </h1> </div>
      <div id="pg1" class="pg"> <h1 class="h1"> BBBB page </h1> </div>
      <div id="pg2" class="pg"> <h1 class="h1"> CCCC page </h1> </div>
      <div id="pg3" class="pg"> <h1 class="h1"> DDDD page </h1> </div>
      <div id="pg4" class="pg"> <h1 class="h1"> EEEE page </h1> </div>
     </div>
    </div>
    </form>
    <script type="text/javascript">
    function toggle(IDS) {
      var sel = document.getElementById('pg').getElementsByTagName('div');
      for (var i=0; i<sel.length; i++) { 
        if (sel[i].id != IDS) { sel[i].style.display = 'none'; }
      }
      var status = document.getElementById(IDS).style.display;
      if (status == 'block') { document.getElementById(IDS).style.display = 'none'; }
                        else { document.getElementById(IDS).style.display = 'block'; }
      return false;
    }
    </script>
    </body>
    </html>

  5. #5
    Join Date
    Apr 2007
    Posts
    3
    Thank you for your help!
    Can you explain (function toggle (IDS) {………}) // how does it work, I am not good in JavaScript.
    I posted this question to a FORUM and somebody answered that” you can also solve the problem with Js event listeners”
    If it is possible please explain also how I can solve this problem with JS event listeners.

    Peter

  6. #6
    Join Date
    Dec 2005
    Location
    FL
    Posts
    7,443

    Lightbulb

    Quote Originally Posted by peterx View Post
    Thank you for your help!
    Can you explain (function toggle (IDS) {………}) // how does it work, I am not good in JavaScript.
    I posted this question to a FORUM and somebody answered that” you can also solve the problem with Js event listeners”
    If it is possible please explain also how I can solve this problem with JS event listeners.

    Peter
    You're most welcome.
    Happy to help.

    The toggle function just collects all the <div> elements within the 'pg' element.
    It resets all displays to 'none', except the currently referenced IDS.
    If the id value matches the current status, it changes (toggles) between 2 different states (display:block or display:none)

    The event listener in this particular case is the 'onclick=' event
    which occurs when you click on the mouse.

    Good Luck!

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