Solved

HTML definition List (DL) onclick event problem

Posted on 2009-04-08
4
958 Views
Last Modified: 2012-06-22
I am learning HTML and Javascript. I encountered an issue when I ran the attached code. If I select the bottom drop down list item, the debug message for the definition list (dl) event handler (markLoadPage) is popped up instead of the one (setColor) for the drop down list. This issue won't show if I move the drop down list to the top of the definition list. Is there anything wrong for the dl onclick event syntax? Thanks!
<html>
  <head>
    <title>Test</title>
    <script language="javascript"> <!--
 
      function markLoadPage( page_url )
      {
	    alert( 'markLoadPage() called!' );
      }
      
      function setColor()
     {
	  alert( 'setColor() called!' );
	  	  
	    var idx = document.getElementById( "color_list" ).selectedIndex;
	    if( idx > 0 )
	    {
	      document.bgColor = document.getElementById( "color_list" ).options[ idx ].value;
          }
      } 
//--></script>
  </head>
  <body>
   <form action="">
     <h2>Categories</h2>
     <dl><a href="red_rose.html" target="P3" onclick="markLoadPage( 'red_rose.html' )">Red rose</dl>
     <dl><a href="pink_rose.html" target="P3" onclick="markLoadPage( 'pink_rose.html' )">Pink rose</dl>
     <dl><a href="yellow_rose.html" target="P3" onclick="markLoadPage( 'yellow_rose.html' )">Yellow rose</dl>
     <dl><a href="white_rose.html" target="P3" onclick="markLoadPage( 'white_rose.html' )">White rose</dl>
     <dl><a href="orange_rose.html" target="P3" onclick="markLoadPage( 'orange_rose.html' )">Orange rose</dl>
     <dl><a href="lavender_rose.html" target="P3" onclick="markLoadPage( 'lavender_rose.html' )">Lavender rose</dl>
     <p/><p/>
     <select name="color_list" id="color_list" onchange="setColor()">
       <option value="prompt">Choose a colour</option>
       <option value="red">red</option>
       <option value="pink">pink</option>
       <option value="yellow">yellow</option>
       <option value="white">white</option>
       <option value="orange">orange</option>
       <option value="lavender">lavender</option>
     </select>
     <p/>
     <input type="button" class="bt_style" value="Save Selection" name="bt_save">  
   </form>
  </body>
</html>

Open in new window

0
Comment
Question by:gs_kanata
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 3

Accepted Solution

by:
GarthSnyder earned 200 total points
ID: 24104444
Your <a> tags are unclosed, so the browser sees them as extending all the way to the end of the document. So the entire <select> popup is included in the link for lavender_rose and therefore has an onclick event.

Just close the <a>'s with </a> and you should be fine.
0
 
LVL 42

Assisted Solution

by:David S.
David S. earned 200 total points
ID: 24104572
The HTML validator can be quite helpful: http://validator.w3.org/
0
 
LVL 75

Assisted Solution

by:Michel Plungjan
Michel Plungjan earned 100 total points
ID: 24105184
I also strongly advice to change


      function markLoadPage( page_url )
      {
            alert( 'markLoadPage() called!' );
            return false; // cancel the link
      }

and

 onclick="return markLoadPage( '...' )"
0
 
LVL 75

Expert Comment

by:Michel Plungjan
ID: 24108133
Why "B" ???
0

Featured Post

Revamp Your Training Process

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article explains how to prepare an HTML email signature template file containing dynamic placeholders for users' Azure AD data. Furthermore, it explains how to use this file to remotely set up a department-wide email signature policy in Office …
Is your Office 365 signature not working the way you want it to? Are signature updates taking up too much of your time? Let's run through the most common problems that an IT administrator can encounter when dealing with Office 365 email signatures.
In this tutorial viewers will learn how to position items using CSS's three positioning types Create a new HTML document with an internal stylesheet.: Create another div in CSS and name it Absolute : Type "position:absolute;" and "top:10px; left:50p…
The viewer will the learn the benefit of plain text editors and code an HTML5 based template for use in further tutorials.

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question