How to enclose tags with tags?

4 New Member

:confused:

I've asked my professor about this one a couple of times in email and she gave me some tips but I still can't nail this one down. Our book only gives one example of using .innerHTML and it's not very relevant to this problem so I want to ask you JS proz out there.

We're supposed to loop through the document.all collection and find all the tags and enclose them in tags. I'm pretty sure I've got most of the script right except for the crucial line where you add the tags. I've tried a lot of variations but I just don't understand enough about how .innerHTML works to get this right and I can't seem to find it on the Web.

Thanks for any help you can provide. Here's the code...

Expand|Select|Wrap|Line Numbers

 <script type = "text/javascript">

   <!--
 
      function go() {
 
         for( var x = 0; x < document.all.length; ++x ) {
 
            if( document.all[ x ].tagName == "p" ) {
 
               document.all[ x ].innerHTML = "<strong>" + 

                  document.all[ x ].innerHTML + "</strong>";

            }
 
         } //end for

      } //end go
 
 // -->

   </script>
 
</head>
 
<body onload = "go()">
 
   <p>
 
      This is a sentence that is enclosed in p-tags.  It is going to be

      enclosed in strong tags as well once the javascript gets through

      with it.  :o)
 
   </p>
 
   <p>
 
      For I am not ashamed of the gospel, for it is the power of God for

      the salvation of all who believe, first for the Jew and then for

      the Gentile.
 
   </p>
 
   <p>
 
      When I'm done with this, I'm going to bed.  I'm tired.  :o)  I watched

      Good Night and Good Luck with my wife tonight.  It was interesting.

      I learned a lot about the clash of CBS & Ed Murrow and McCarthy the

      Communist head hunter.
 
   </p>
 
   <p style = "font-weight: bold">Here's an example of what bold text should

      look like.</p>
 
</body>

</html>

Jul 13 '06 #1

Subscribe Reply

2058

Banfa

9,065

Recognized Expert Moderator Expert

document.all is not a part of the HTML/Javascript DOM it is IE specific and there for wont work on Firefox which is what I use. You can get all the paragraphs using the function document.getEle mentsByTagName( ...), when I changed you code to do this it worked.

Expand|Select|Wrap|Line Numbers

 
<script type = "text/javascript">

  <!--
 
         function go() {
 
    var pars = document.getElementsByTagName("p");

        for( var x = 0; x < pars.length; ++x ) {
 
              pars[ x ].innerHTML = "<strong>" + 

                      pars[ x ].innerHTML + "</strong>";
 
        } //end for

     } //end go
 
 // -->

  </script>

Jul 13 '06 #2

Swaine77

New Member

Thanks a lot for the tip. I'd still like to know how to use IE's document.all better.

Jul 14 '06 #3

Arielle

New Member

You need to use an uppercase P in your test. It is case-sensitive and it's looking for uppercase.

if( document.all[ x ].tagName == "P" ) {

I ran it with this change and your code works just fine. I've made this mistake a million times too... strange how capitalization and syntax make for so many minor mistakes to hurt our brains :)

Jul 14 '06 #4

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