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291 posts

Ultimate Geek


Topic # 63309 24-Jun-2010 09:10 Send private message

Hi,

Any folks in here know much about Javascript?

I am wanting to link to an .js file, to keep the head of my web page im building nice and clean.  I cant figure out how to do it though.

This is what is in the <head> of my xhtml file:

[code]
<script language="javascript" type="text/javascript">
    if(document.images){
        one_off = new Image;
        one_on = new Image;
        one_off.src = "images/navigation/gallery_up.jpg"
        one_on.src = "images/navigation/gallery_down.jpg"
        two_off = new Image;
        two_on = new Image;
        two_off.src = "images/navigation/exhibitions_up.jpg"
        two_on.src = "images/navigation/exhibitions_down.jpg"
        three_off = new Image;
        three_on = new Image;
        three_off.src = "images/navigation/commissions_up.jpg"
        three_on.src = "images/navigation/commissions_down.jpg"
        four_off = new Image;
        four_on = new Image;
        four_off.src = "images/navigation/contact_up.jpg"
        four_on.src = "images/navigation/contact_down.jpg"
        }
        else{
            one_off = "";
            one_on = "";
            document.one = "";
            two_off = "";
            two_on = "";
            document.two = "";
            three_off = "";
            three_off = "";
            document.three = "";
            four_off = "";
            four_on = "";
            document.four = "";
        }
</script>
[/code]

and in the body;

[code]
<a href="gallery.html" onmouseover="document.one.src=one_on.src" onmouseout="document.one.src=one_off.src">
<img src="images/navigation/gallery_up.jpg" name ="one" alt="Gallery" width="96" height="240" border="0"/></a>
&nbsp;
<a href="exhibitions.html" onmouseover="document.two.src=two_on.src" onmouseout="document.two.src=two_off.src">
<img src="images/navigation/exhibitions_up.jpg" name="two" alt="Exhibitions" width="96" height="240" border="0"/></a>
&nbsp;
<a href="commissions.html" onmouseover="document.three.src=three_on.src" onmouseout="document.three.src=three_off.src">
<img src="images/navigation/commissions_up.jpg" name="three" alt="Commissions" width="96" height="240" border="0"/></a>
&nbsp;
<a href="contact.html" onmouseover="document.four.src=four_on.src" onmouseout="document.four.src=four_off.src">
<img src="images/navigation/contact_up.jpg" name="four" alt="Contact" width="96" height="240" border="0"/></a>[/code]

what I would like to do, is copy the script located in the head, into its own .js file ('rollover.js') and just link to it like <script language="javascript" type="text/javascript" src="rollover.js">

What would I need to change in the body, so that it still works?  I cant figure it out :(




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Phil Gale
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+1 received by user: 39

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Red Jungle
Subscriber

  Reply # 344760 24-Jun-2010 09:12 Send private message

Sounds like you have it right to me.. just don't put the script tags into the external .js file.




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291 posts

Ultimate Geek


  Reply # 344766 24-Jun-2010 09:23 Send private message

I tried it out, but when I refereshed the index.html file, all the images on the page dissapeared. I thought I might need to change something in this area;
[code]
<a href="gallery.html" onmouseover="document.one.src=one_on.src" onmouseout="document.one.src=one_off.src">
<img src="images/navigation/gallery_up.jpg" name ="one" alt="Gallery" width="96" height="240" border="0"/></a>
[/code]

maybe somehow telling it to look for the 'rollover.js' file instead of just looking in the head?




1768 posts

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+1 received by user: 45

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  Reply # 344778 24-Jun-2010 09:43 Send private message

In the head part of the HTML page, you point to your script.
script src="http://your_script.js" type="text/javascript">
/script



291 posts

Ultimate Geek


  Reply # 344780 24-Jun-2010 09:46 Send private message

Oh Do'h! I didn't relise you also needed a closing tag if it was only pointing to an external file. Thanks for the help! its working now :)




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