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POBeginner JavaScript/HTML Frame Communication
 

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  1. POBeginner JavaScript/HTML Frame Communication
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    <p>One of my assignments for my Web Design class is to create a page in which two frames communicate using JavaScript. There are four links on the lower frame (lower2.html) and when clicked, they're supposed to change the image in the upper frame (upper1.html) to the respective image but don't. Here's what I have:</p> <p><strong>File name: js-seventeen.html. This is the one I execute.</strong></p> <pre><code>&lt;HTML&gt; &lt;HEAD&gt; &lt;TITLE&gt;HTML and JavaScript&lt;/TITLE&gt; &lt;/HEAD&gt; &lt;FRAMESET ROWS="140,*"&gt; &lt;FRAME NAME="upperFrame" SRC="upper1.html"&gt; &lt;FRAME NAME="lowerFrame" SRC="lower2.html"&gt; &lt;/FRAMESET&gt; &lt;/HTML&gt; </code></pre> <p><strong>File name: upper1.html. This is the upper frame that displays the images.</strong></p> <pre><code>&lt;HTML&gt; &lt;HEAD&gt; &lt;TITLE&gt;HTML and JavaScript&lt;/TITLE&gt; &lt;/HEAD&gt; &lt;BODY&gt; &lt;CENTER&gt; &lt;IMG NAME="upperImage" SRC="lions.gif"&gt; &lt;/CENTER&gt; &lt;/BODY&gt; &lt;/HTML&gt; </code></pre> <p><strong>File name: lower2.html. This is the lower frame that contains the links that should change the images, but don't. No matter what I click, it stays on the default lions.gif.</strong></p> <pre><code>&lt;HTML&gt; &lt;HEAD&gt; &lt;TITLE&gt;HTML and JavaScript&lt;/TITLE&gt; &lt;SCRIPT&gt; function setImage(number) { if (number==1) { parent.upperFrame.document.upperImage.src="lions.gif"; } if (number==2) { parent.upperFrame.document.upperImage.src="tigers.gif"; } if (number==3) { parent.upperFrame.document.upperImage.src="bears.gif"; } if (number==4) { parent.upperFrame.document.upperImage.src="ohmy.gif"; } return; } &lt;/SCRIPT&gt; &lt;/HEAD&gt; &lt;BODY&gt; &lt;CENTER&gt; &lt;H2&gt;IMAGE LIST&lt;/H2&gt; &lt;TABLE&gt; &lt;TR&gt;&lt;TD&gt;&lt;A HREF="javascript:setImage(1)"&gt;1: LIONS.GIF&lt;/A&gt;&lt;/TD&gt;&lt;/TR&gt; &lt;TR&gt;&lt;TD&gt;&lt;A HREF="javascript:setImage(2)"&gt;2: TIGERS.GIF&lt;/A&gt;&lt;/TD&gt;&lt;/TR&gt; &lt;TR&gt;&lt;TD&gt;&lt;A HREF="javascript:setImage(3)"&gt;3: BEARS.GIF&lt;/A&gt;&lt;/TD&gt;&lt;/TR&gt; &lt;TR&gt;&lt;TD&gt;&lt;A HREF="javascript:setImage(4)"&gt;4: OHMY.GIF&lt;/A&gt;&lt;/TD&gt;&lt;/TR&gt; &lt;/TABLE&gt; &lt;/CENTER&gt; &lt;/BODY&gt; &lt;/HTML&gt; </code></pre> <p>I've looked through the book and as far as I can tell, I've done everything properly. Thanks in advance for your help.</p>
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    1. COlooks like 20th century stuff, I feel pity for you. frames are in window object collection called frames, so try something like parent.frames['upperframe'].document.images[0].src - im not sure if it's going to work, just try - as this is now completely useless and outdated stuff.
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      1. POBeginner JavaScript/HTML Frame Communication
      1. USmagyar1984
    2. COIt doesn't work, but thanks anyway. I realise good design practise is to avoid frames in general, but I'm being taught from a book that tells me I can use Netscape to search for information and which explains how Oracle, Sun, and Microsoft are all competing with it to produce the best browser. :)
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    3. COif you can afford to buy some newer stuff and you want do webdesign - invest in books, if you just need credits than it's ok ;)
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      1. USmagyar1984
 

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