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DHTML menu FAQ
DHTML menu FAQs
General
- What are the common errors?
- Are the DHTML menus completely
cross-browser compatible?
- Can I use the menus in my frames
page?
- How do I put the menus in an include
page?
- Why do I get a grey line in the
menus when viewing in Netscape?
- How do I change the link colours?
Drop-Down Menu
- How do I center the menu?
- How do I open a page in a new window?
- Can the top headings be made to be
links?
Pop-Out Menu
- What does "POT menu is undefined"
mean?
- How do I open a page in a new window?
- How do I get a text rollover effect
if a section name is not a link?
What are the common errors?
If the menu isn't working correctly the first thing
to check is that the paths are correct to the .js file
and the clearpixel.png. Make sure that section names
correspond to sub-section names. Preview the page in
a browser to check rather than HTML view in Frontpage
or Design View in Dreamweaver. Be sure the browser you
are using supports DHTML. The .js file and clearpixel.png
must be in the root of your web.
Are the DHTML menus completely cross-browser compatible?
The menus have been tried and tested in Netscape 4.7+
including Netscape 6.1, Microsoft Explorer 4+, Firefox, Safari, Chrome and Opera
- this accounts for about 99% of the browser market.
Can I use the menus in my frames page?
As a frameset is made up of separate pages the menu
will show on the one page it is placed on and so will
not "jump" over the frame to a different page.
If you want ease of maintenance an excellent solution
would be to use the menu as an include page - see below.
How do I put the menus in an include page?
This is probably the best way to go for the menus -
this allows to create just one menu, update it and have
all the pages with your menu included to be updated
at the same time. The important thing to remember is
that the paths to the .js file, the clearpixel.png and
of course the URLs should be checked carefully. In Frontpage,
the include page function is fairly straightfoward but
remember to put all the scripting between the opening
and closing <BODY> tags - this includes the path
to the .js file. In Dreamweaver set up the menu page,
there's no need for the usual <HTML> <HEAD>
or <BODY> tags and then choose Menu>Insert>Server
Side Include where you want the menu to be included.
The parent page will probably need to be renamed to
.shtml. You can also use the template or library item
feature, and although you won't see the menu while you
are design view, previewing in a browser will allow
you to see the changes you're making.
Why do I get a grey line in the menus when viewing in
Netscape?
The reason here is a missing clearpixel.png in the images
folder or possibly the path to the image is wrong.
How do I change the link colours?
The link colours and underlines are determined by the
Stylesheet. Changing the Hex values will change the
colour of the links.
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Drop-Down Menu
How do I center the menu?
To centre the menu you'll need to change the width of
clearpixel.png - to move the menu to the right decrease
the width of the gif - to move it to the left, increase
the width of clearpixel.png.
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How do I open a page in a new window?
If you want to make the link open in a new window, look
at this example: mymenu2.addSubMenu("examples2",
"<b> DROP DOWN VIRTUAL CATALOG</b>",
'https://www.thetemplatestore.com/dwvirtualcatalogdropdowns/"
target="_blank')
Be careful with the punctuation here
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Can the top headings be made to be
links?
Unfortunately there are compatibility issues here with
Netscape, MSIE will happily allow you to use the headings
as links. One way round it is to make a graphic and
placing it before your menu - for example if you just
want a home link - another possibility is to have a
drop down category called "main" for example
and linking main pages from there.
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Pop-Out Menu
What does "POT menu is undefined" mean?
This is usually caused by one of two things. It could
be that the path to the .js file is not correct or that
the section headings don't correspond to the names for
the pop-outs. For example a main heading like:
mymenu.addMenu("instructions","<b>instructions</b>",
"")
should have a corresponding section/pop-out name:
mymenu.addSubMenu("instructions",
"", "<b>menu</b>", "menu.htm")
How do I open a page in a new window?
If you want to make the link open in a new window, look
at this example: mymenu.addSubMenu("examples",
"", "<b>virtual mauve</b>",
'https://www.thetemplatestore.com/dwpopoutmauve/"
target="_blank')
Be careful with the punctuation here
How do I get a text rollover effect if a section name
is not a link?
Sometimes it is not necessary to have a section linked,
but the section has a number of pop-outs - to keep things
tidy instead of having mymenu.addMenu("main","<b>main</b>",
"main.htm") where the link is to main.htm,
you can change it to mymenu.addMenu("main","<b>main</b>",
"#") so you maintain the link color but are
not taken anywhere in case anyone tries to click.
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