Elementary question I suppose, using the parameters.

[[Mr.] Lynn Kurtz]

I'm new to javascript and I have run into a problem I bet someone here
can help me with. I have a little web page that includes this call to
another html file with two parameters:

<a href="car.html?chevy.jpg|nameone">
<img src="slides/chevythumbnail.jpg" >
</a>

So when I click on the chevythumbnail image, it brings up the car.html
page with the parameter string. I have figured out how read and parse
the parameter string in the car.html file so in the script portion I
have defined:

var carparams = new Array[2]
and I have managed to set carparams[0] and carparams[1] to the strings
"chevy.jpg" and "nameone" from the parameters. So far, so good.

Now I want to display the image in a table like in this snippet
(there's more to the table, but this illustrates):

<tr>
<td align="center"><img src="chevy.jpg"></a>
</td>
</tr>
<tr>
<td align = "center"><anameone</a>
</td>
</tr>

The problem is that I want the name of that chevy.jpg and its label
nameone underneath to come from the carparams array.

Heeeelp please.

--Lynn

[Peter Michaux]

On Oct 22, 6:51 pm, "[Mr.] Lynn Kurtz" <[e-mail]:

I'm new to javascript and I have run into a problem I bet someone here
can help me with. I have a little web page that includes this call to
another html file with two parameters:

<a href="car.html?chevy.jpg|nameone">

I'm curious why choose to use of the vertical bar character in a URL.
That is not common.

<img src="slides/chevythumbnail.jpg" >
</a>

So when I click on the chevythumbnail image, it brings up the car.html
page with the parameter string. I have figured out how read and parse
the parameter string in the car.html file so in the script portion I
have defined:

var carparams = new Array[2]
and I have managed to set carparams[0] and carparams[1] to the strings
"chevy.jpg" and "nameone" from the parameters. So far, so good.

Now I want to display the image in a table like in this snippet
(there's more to the table, but this illustrates):

<tr>
<td align="center"><img src="chevy.jpg"></a>
</td>
</tr>
<tr>
<td align = "center"><anameone</a>
</td>
</tr>

The problem is that I want the name of that chevy.jpg and its label
nameone underneath to come from the carparams array.

This should be very possible using innerHTML or some combination of
functions like createElement() and appendChild().

What exactly does your table HTML look like before the img and a
elements you show above are inserted? Are the tr elements you show
above already there? Are the td elements you show above already there?
Does the table have a tbody element? It will need to have a tbody
element if the tr elements are not there.

Peter

[[Mr.] Lynn Kurtz]

On Tue, 23 Oct 2007 03:34:39 -0000, Peter Michaux
<pe**********@gmail.comwrote:

>On Oct 22, 6:51 pm, "[Mr.] Lynn Kurtz" <[e-mail]:

>I'm new to javascript and I have run into a problem I bet someone here
can help me with. I have a little web page that includes this call to
another html file with two parameters:

<a href="car.html?chevy.jpg|nameone">

I'm curious why choose to use of the vertical bar character in a URL.
That is not common.

I'm new at this. I just wanted a string delimiter for the parameter
string and | looks nice to me. I don't recognize it as a URL, just a
parameter string, no?

>

><img src="slides/chevythumbnail.jpg" >
</a>

So when I click on the chevythumbnail image, it brings up the car.html
page with the parameter string. I have figured out how read and parse
the parameter string in the car.html file so in the script portion I
have defined:

var carparams = new Array[2]
and I have managed to set carparams[0] and carparams[1] to the strings
"chevy.jpg" and "nameone" from the parameters. So far, so good.

Now I want to display the image in a table like in this snippet
(there's more to the table, but this illustrates):

<tr>
<td align="center"><img src="chevy.jpg"></a>
</td>
</tr>
<tr>
<td align = "center"><anameone</a>
</td>
</tr>

The problem is that I want the name of that chevy.jpg and its label
nameone underneath to come from the carparams array.

This should be very possible using innerHTML or some combination of
functions like createElement() and appendChild().

Could you be a bit more specific?

>What exactly does your table HTML look like before the img and a
elements you show above are inserted? Are the tr elements you show
above already there? Are the td elements you show above already there?
Does the table have a tbody element? It will need to have a tbody
element if the tr elements are not there.

The below stripped down table shows the picture of Chevy.jpg and below
puts a label nameone. That is the effect I seek. I just need to know
how to change it so it uses the strings in the carparams array in the
script section instead of hardcoded in these lines.

<table>
<tr>
<td align="center"><img src="Chevy.jpg"></a>
</td>
</tr>
<tr>
<td align = "center"><anameone</a>
</td>
</tr>
</table>

--Lynn

[Peter Michaux]

On Oct 22, 10:21 pm, "[Mr.] Lynn Kurtz" <[e-mail]:

On Tue, 23 Oct 2007 03:34:39 -0000, Peter Michaux

<[e-mail]:

On Oct 22, 6:51 pm, "[Mr.] Lynn Kurtz" <[e-mail]:

I'm new to javascript and I have run into a problem I bet someone here
can help me with. I have a little web page that includes this call to
another html file with two parameters:

<a href="car.html?chevy.jpg|nameone">

I'm curious why choose to use of the vertical bar character in a URL.
That is not common.

I'm new at this. I just wanted a string delimiter for the parameter
string and | looks nice to me. I don't recognize it as a URL, just a
parameter string, no?

I'd guess something like this would be more common...

car.html?img=chevy.jpg&caption=nameone

It's not important for your problem below. I was just curious.

<img src="slides/chevythumbnail.jpg" >
</a>

So when I click on the chevythumbnail image, it brings up the car.html
page with the parameter string. I have figured out how read and parse
the parameter string in the car.html file so in the script portion I
have defined:

var carparams = new Array[2]
and I have managed to set carparams[0] and carparams[1] to the strings
"chevy.jpg" and "nameone" from the parameters. So far, so good.

Now I want to display the image in a table like in this snippet
(there's more to the table, but this illustrates):

<tr>
<td align="center"><img src="chevy.jpg"></a>
</td>
</tr>
<tr>
<td align = "center"><anameone</a>
</td>
</tr>

The problem is that I want the name of that chevy.jpg and its label
nameone underneath to come from the carparams array.

This should be very possible using innerHTML or some combination of
functions like createElement() and appendChild().

Could you be a bit more specific?

What exactly does your table HTML look like before the img and a
elements you show above are inserted? Are the tr elements you show
above already there? Are the td elements you show above already there?
Does the table have a tbody element? It will need to have a tbody
element if the tr elements are not there.

The below stripped down table shows the picture of Chevy.jpg and below
puts a label nameone. That is the effect I seek. I just need to know
how to change it so it uses the strings in the carparams array in the
script section instead of hardcoded in these lines.

<table>
<tr>
<td align="center"><img src="Chevy.jpg"></a>
</td>
</tr>
<tr>
<td align = "center"><anameone</a>
</td>
</tr>
</table>

But what does the table's html look like _before_ it has the image
filename and the caption inserted?

<table>
<tr>
<td align="center"><img src="">
</td>
</tr>
<tr>
<td align = "center"><a></a>
</td>
</tr>
</table>

or

<table>
<tr>
<td align="center">
</td>
</tr>
<tr>
<td align = "center">
</td>
</tr>
</table>

or

<table>
<tr>
</tr>
<tr>
</tr>
</table>

or

<table>
</table>

I'm trying to determine how much of the HTML needs to be built up by
the JavaScript.

Peter

[matatunos]

[Mr.] Lynn Kurtz a pensé très fort :

On Tue, 23 Oct 2007 03:34:39 -0000, Peter Michaux
<pe**********@gmail.comwrote:

>On Oct 22, 6:51 pm, "[Mr.] Lynn Kurtz" <[e-mail]:

>>I'm new to javascript and I have run into a problem I bet someone here
can help me with. I have a little web page that includes this call to
another html file with two parameters:

<a href="car.html?chevy.jpg|nameone">

I'm curious why choose to use of the vertical bar character in a URL.
That is not common.

I'm new at this. I just wanted a string delimiter for the parameter
string and | looks nice to me. I don't recognize it as a URL, just a
parameter string, no?

>

why don't you use forms?

http://www.javaworld.com/jw-06-1996/...avascript.html

- you are too new with it and don'k know nothing about its existence?
- or you dont want to use them?

[[Mr.] Lynn Kurtz]

On Tue, 23 Oct 2007 05:31:29 -0000, Peter Michaux
<pe**********@gmail.comwrote:

>But what does the table's html look like _before_ it has the image
filename and the caption inserted?

<table>
<tr>
<td align="center"><img src="">
</td>
</tr>
<tr>
<td align = "center"><a></a>
</td>
</tr>
</table>

or

<table>
<tr>
<td align="center">
</td>
</tr>
<tr>
<td align = "center">
</td>
</tr>
</table>

or

<table>
<tr>
</tr>
<tr>
</tr>
</table>

or

<table>
</table>

I'm trying to determine how much of the HTML needs to be built up by
the JavaScript.

OK, it's a script I am writing, so it could be any of these. Let's
assume I have everything except displaying the image and caption, so
it's like this, just awaiting the remaining code:

><table>
<tr>
<td align="center">
</td>
</tr>
<tr>
<td align = "center">
</td>
</tr>
</table>

I actually have a longer parameter list and more rows and columns, but
if I can see how to do this I should be able to figure out the rest.

--Lynn

[[Mr.] Lynn Kurtz]

On Tue, 23 Oct 2007 11:56:56 +0200, matatunos <ma*******@gmail.com>
wrote:

>
why don't you use forms?

http://www.javaworld.com/jw-06-1996/...avascript.html

- you are too new with it and don'k know nothing about its existence?
- or you dont want to use them?

It's my first attempt at javascript and I have a simple one time need.
I have browsed a javascript tutorial so I am aware of forms. If I have
to learn forms to do it, I guess I will, but I was thinking that might
be overkill for what I want to do. But maybe not.

--Lynn

[Thomas 'PointedEars' Lahn]

Peter Michaux wrote:

On Oct 22, 6:51 pm, "[Mr.] Lynn Kurtz" <[e-mail]:

>I'm new to javascript and I have run into a problem I bet someone here
can help me with. I have a little web page that includes this call to
another html file with two parameters:

<a href="car.html?chevy.jpg|nameone">

I'm curious why choose to use of the vertical bar character in a URL.
That is not common.

It is forbidden. ASCII characters that are not alphanumeric or otherwise in
the unreserved set, that are not sub-delimiters, and that are not in the
reserved set, have to be percent-encoded in the query part of an URI (here
as %7C). See RFC 3986, section 3.4.

>The problem is that I want the name of that chevy.jpg and its label
nameone underneath to come from the carparams array.

This should be very possible using innerHTML or some combination of
functions like createElement() and appendChild().

Where the latter is to be preferred.
PointedEars

[Bart Van der Donck]

Thomas 'PointedEars' Lahn wrote:

Peter Michaux wrote:

>I'm curious why choose to use of the vertical bar character in a URL.
That is not common.

It is forbidden. ASCII characters that are not alphanumeric or otherwise in
the unreserved set, that are not sub-delimiters, and that are not in the
reserved set, have to be percent-encoded in the query part of an URI (here
as %7C). See RFC 3986, section 3.4.

Sorry for the nitpick, but RFC states 'unwise' rather than
'forbidden'. Section 2.4.3. 'Excluded US-ASCII Characters' in RFC2396:

| Other characters are excluded because gateways and other transport
| agents are known to sometimes modify such characters, or they are
| used as delimiters.
| unwise = "{" | "}" | "|" | "\" | "^" | "[" | "]" | "`"

Note that this excerpt also explicitly mentions that vertical bars
actually *are* used as delimiters (I think this statement would be
based upon practical 'as is' observation on the Internet).

But I would not rely on user agents to handle the vertical bar
consistently. To play safe, use '&'.

--
Bart

[[Mr.] Lynn Kurtz]

On Thu, 25 Oct 2007 01:45:20 -0700, Bart Van der Donck
<ba**@nijlen.comwrote:

>Thomas 'PointedEars' Lahn wrote:

>Peter Michaux wrote:

>>I'm curious why choose to use of the vertical bar character in a URL.
That is not common.

It is forbidden. ASCII characters that are not alphanumeric or otherwise in
the unreserved set, that are not sub-delimiters, and that are not in the
reserved set, have to be percent-encoded in the query part of an URI (here
as %7C). See RFC 3986, section 3.4.

Sorry for the nitpick, but RFC states 'unwise' rather than
'forbidden'. Section 2.4.3. 'Excluded US-ASCII Characters' in RFC2396:

| Other characters are excluded because gateways and other transport
| agents are known to sometimes modify such characters, or they are
| used as delimiters.
| unwise = "{" | "}" | "|" | "\" | "^" | "[" | "]" | "`"

Note that this excerpt also explicitly mentions that vertical bars
actually *are* used as delimiters (I think this statement would be
based upon practical 'as is' observation on the Internet).

But I would not rely on user agents to handle the vertical bar
consistently. To play safe, use '&'.

Probably not critical in my application, but I am changing it to the
ampersand. Thanks for the replies.

--Lynn