I assume this question is about HTML forms. From the [specification][1]:

&gt; The LABEL element may be used to attach information to controls. Each LABEL element is associated with exactly one form control.

Thus, each form control can be referenced by multiple labels, but each label can only reference one control. So if it makes sense to have a second label for a control (and in the situation you describe, it does) feel free to add a second label.



  [1]: http://www.w3.org/TR/html4/interact/forms.html#edef-LABEL

The HTML is legal, and it works (clicking on any of the labels will transfer focus to the field in question).

It&#39;s a little trickier to do right for accessibility reasons.

It&#39;s not a &quot;common&quot; approach, and because of that at least one common screen reader (I tested with NVDA) only reads the first label when you shift focus into the field -- it ignores any additional labels for the same field.

So if your error message is at the top of the page, a blind or low-vision user tabbing through the fields will hear just the error message when landing on the field in question, not the &quot;real&quot; label next to it.

Hence -- if you phrase the error message properly, that might be a good thing (certainly better than just highlight the non-validating field in red!).

Yes, you can have multiple labels point at the same form control. This is [perfectly legal][1]:

    &lt;label for=&quot;fname&quot;&gt;First name&lt;/label&gt;
    &lt;label for=&quot;fname&quot;&gt;Enter your info&lt;/label&gt;
    &lt;label for=&quot;fname&quot;&gt;Why not a third label&lt;/label&gt;
    &lt;input type=&quot;text&quot; id=&quot;fname&quot; name=&quot;fname&quot;&gt;

This is just an example... normally you would wrap these lines with one label since they&#39;re close.


  [1]: http://www.w3.org/TR/html401/interact/forms.html#h-17.9.1


I have a few questions about the socket library in C.  Here is a snippet of code I&#39;ll refer to in my questions.

    char recv_buffer[3000];
    recv(socket, recv_buffer, 3000, 0);

1. How do I decide how big to make recv_buffer?  I&#39;m using 3000, but it&#39;s arbitrary.  
2. what happens if `recv()` receives a packet bigger than my buffer?  
3. how can I know if I have received the entire message without calling recv again and have it wait forever when there is nothing to be received?
4. is there a way I can make a buffer not have a fixed amount of space, so that I can keep adding to it without fear of running out of space? maybe using `strcat` to concatenate the latest `recv()` response to the buffer?

I know it&#39;s a lot of questions in one, but I would greatly appreciate any responses.

How large should my recv buffer be when calling recv in the socket library

I&#39;ve got quite big trouble, because i need to anathematise from styling some input types. I had something like:
    
    .registration_form_right input:not([type=&quot;radio&quot;)
    {
     //Nah.
    }

But i don&#39;t want to style checkboxes too.

I&#39;ve tried:

    .registration_form_right input:not([type=&quot;radio&quot; &amp;&amp; type=&quot;checkbox&quot;])
    .registration_form_right input:not([type=&quot;radio&quot; &amp;&amp; &quot;checkbox&quot;])
    .registration_form_right input:not([type=&quot;radio&quot;) &amp;&amp; .registration_form_right input:not(type=&quot;checkbox&quot;])

How to use `&amp;&amp;`? And I&#39;ll need to use `||` soon, and I think that usage will be same.

**Update:**  
I still don&#39;t know how to use `||` and `&amp;&amp;` correctly. I couldn&#39;t find anything in W3 docs.
    

CSS &quot;and&quot; and &quot;or&quot;

*Mary had a little form, and its fields where labeled just so.  
Whenever an error crept in, confusion it would sow.*

I&#39;ve got a label for each input field... pretty standard affair.
After validating the form, I&#39;m displaying a helpful little paragraph at the top of the form detailing what information is missing or incorrect.

Can I have two labels for the same input field? One in the form proper, and one in the validation reminder text? Is there any reason I shouldn&#39;t do this?

Can an input field have two labels?

Mary had a little form, and its fields where labeled just so. 
Whenever an error crept in, confusion it would sow.
I've got a label for each input field... pretty standard affair.
After validating the form, I'm displaying a helpful little paragraph at the top of the form detailing what information is missing or incorrect.
Can I have two labels for the same input field? One in the form proper, and one in the validation reminder text? Is there any reason I shouldn't do this?

    &lt;html&gt;
      &lt;body&gt;
        &lt;style type=&quot;text/css&quot;&gt;
          p.first {color:blue}
          p.second {color:green}
        &lt;/style&gt;

        &lt;p class=&quot;first&quot;&gt;Hello World&lt;/p&gt;
        &lt;p class=&quot;second&quot;&gt;Hello World&lt;/p&gt;

        &lt;style type=&quot;text/css&quot;&gt;
          p.first {color:green}
          p.second {color:blue}
        &lt;/style&gt;

        &lt;p class=&quot;first&quot;&gt;Hello World&lt;/p&gt;
        &lt;p class=&quot;second&quot;&gt;Hello World&lt;/p&gt;
      &lt;/body&gt;
    &lt;/html&gt;


How is a browser supposed to render css which is non contiguous? Is it supposed to generate some data structure using all the css styles on a page and use that for rendering?

Or does it render using style information in the order it sees?


Using &lt;style&gt; tags in the &lt;body&gt; with other HTML

&gt;\- A Reuters reporter in Surkhrod district in Nangarhar province, where villagers said the raids took place, said Afghan police fired at the crowd after some of them started throwing stones at local government buildings.

In the above paragraph, I would like to use CSS to make all lines after the first line to automatically indent some space so that each line stays right after the - in the first line.

**HTML**

    &lt;p&gt; - A Reuters reporter in Surkhrod district in Nangarhar province, where 
    villagers said the raids took place, said Afghan police fired at the crowd 
    after some of them started throwing stones at local government buildings.&lt;/p&gt;


It&#39;s similar to a list item with list position set to outside, but I don&#39;t want to use a list.

What is the simplest way you can think of to achieve this effect? Less extra html markups will be better.

Many thanks to you all.

Text indent after the first line in a paragraph

How can I get a checkbox&#39;s value in jQuery?

Get checkbox value in jQuery

How do you link (with `&lt;a&gt;`) so that the browser goes to certain subheading on the target page as opposed to the top?


How do I link to part of a page? (hash?)

Well, I&#39;m pretty much trying to figure out how to pull information from a webpage, and bring it into my program (in Java). 

For example, if I know the exact page I want info from, for the sake of simplicity a Best Buy item page, how would I get the appropriate info I need off of that page? Like the title, price, description? 

What would this process even be called? I have no idea were to even begin researching this.

Edit:
Okay, I&#39;m running a test for the JSoup(the one posted by BalusC), but I keep getting this error:

    

    Exception in thread &quot;main&quot; java.lang.NoSuchMethodError: java.util.LinkedList.peekFirst()Ljava/lang/Object;
	at org.jsoup.parser.TokenQueue.consumeWord(TokenQueue.java:209)
	at org.jsoup.parser.Parser.parseStartTag(Parser.java:117)
	at org.jsoup.parser.Parser.parse(Parser.java:76)
	at org.jsoup.parser.Parser.parse(Parser.java:51)
	at org.jsoup.Jsoup.parse(Jsoup.java:28)
	at org.jsoup.Jsoup.parse(Jsoup.java:56)
	at test.main(test.java:12)

I do have Apache Commons

How to &quot;scan&quot; a website (or page) for info, and bring it into my program?

I have a form that takes a little while for the server to process. I need to ensure that the user waits and does not attempt to resubmit the form by clicking the button again. I tried using the following jQuery code:

    &lt;script type=&quot;text/javascript&quot;&gt;
    $(document).ready(function() {
        $(&quot;form#my_form&quot;).submit(function() {
            $(&#39;input&#39;).attr(&#39;disabled&#39;, &#39;disabled&#39;);
            $(&#39;a&#39;).attr(&#39;disabled&#39;, &#39;disabled&#39;);
            return true;
        });
    });
    &lt;/script&gt;

When I try this in Firefox everything gets disabled but the form is not submitted with any of the POST data it is supposed to include. I can&#39;t use jQuery to submit the form because I need the button to be submitted with the form as there are multiple submit buttons and I determine which was used by which one&#39;s value is included in the POST. I need the form to be submitted as it usually is and I need to disable everything right after that happens.

Thanks!

Prevent double submission of forms in jQuery

I want to validate my form using jquery but it doesn&#39;t have an `ID` property as of now how to add it to the form in asp.net mvc? I am using this...

    &lt;% using (Html.BeginForm()) {%&gt;

and my jquery validator plugin takes this,

    var validator = $(&quot;#signupform&quot;).validate({

Now i want to give id as `signupform`... Any suggestion...



How to add ID property to Html.BeginForm() in asp.net mvc?

I have a classifieds website, and on the page where ads are showed, I am creating a &quot;Send a tip to a friend&quot; form...

So anybody who wants can send a tip of the ad to some friends email-adress.

I am guessing the form must be submitted to a php page right?
```html
&lt;form name=&quot;tip&quot; method=&quot;post&quot; action=&quot;tip.php&quot;&gt;
  Tip somebody: 
  &lt;input 
    name=&quot;tip_email&quot;
    type=&quot;text&quot; 
    size=&quot;30&quot; 
    onfocus=&quot;tip_div(1);&quot; 
    onblur=&quot;tip_div(2);&quot;
  /&gt;
  &lt;input type=&quot;submit&quot; value=&quot;Skicka Tips&quot; /&gt;
  &lt;input type=&quot;hidden&quot; name=&quot;ad_id&quot; /&gt;
&lt;/form&gt;
```
When submitting the form, the page gets reloaded... I don&#39;t want that...

Is there any way to make it not reload and still send the mail?
Preferrably without ajax or jquery...

Submit form without page reloading

I heard that HTTP POST has no specification limit in data size it can be sent by. Is that true or is there just some really high limit?

Can HTTP POST be limitless?

How can I adjust only the size of Y-axis labels in R?

I know that cex.axis alters the size of the axis labels but it only affects the x-axis. Why, and how can I adjust the y axis?

How to adjust the size of y axis labels only in R?

I want to add a greek character to the y-axis of my barplot in R.  
The problem is that I need this character to be integrated in the title. I want to write: 

    Diameter of aperture (&quot;mu&quot;m)

in the axis label.

With

    ylab=expression()

I can write the greek character, with

    ylab=&quot;axis title&quot;

I can write the title with proper spaces between the words.

But I can&#39;t find a way to put all these together and write a proper label with a greek word in the axis label. I hope I was clear enough.


Adding greek character to axis title

I want to have labels with small size on a  piechart in python to improve visibility
here is the code

    import matplotlib.pyplot as plt
    
    frac=[1.40 , 10.86 , 19.31 , 4.02 , 1.43 , 2.66 , 4.70 , 0.70 , 0.13 , 1.48, 32.96 , 1.11 , 13.30 , 5.86]
    labels=[&#39;HO0900344&#39;, &#39;HO0900331&#39;, &#39;HO0900332&#39;, &#39;HO0900354&#39;, 
	&#39;HO0900358&#39;, &#39;HO0900374&#39;, &#39;HO0900372&#39;, &#39;HO0900373&#39;, 
	&#39;HO0900371&#39;, &#39;HO0900370&#39;, &#39;HO0900369&#39;, &#39;HO0900356&#39;, 
	&#39;HO0900353&#39;, &#39;HO0900343&#39;]

    fig = plt.figure(1, figsize=(6,6))
    ax = fig.add_subplot(111)
    ax.axis(&#39;equal&#39;)
    colors=(&#39;b&#39;, &#39;g&#39;, &#39;r&#39;, &#39;c&#39;, &#39;m&#39;, &#39;y&#39;, &#39;burlywood&#39;, &#39;w&#39;)
    ax.pie(frac,colors=colors ,labels=labels, autopct=&#39;%1.1f%%&#39;)
    plt.show()

Thanks and cheers

How to set the labels size on a pie chart in python

Is there a simple way to put the y-axis label on the right-hand side of the plot? I know that this can be done for the tick labels using `ax.yaxis.tick_right()`, but I would like to know if it can be done for the axis label as well.

One idea which came to mind was to use

    ax.yaxis.tick_right()
    ax2 = ax.twinx()
    ax2.set_ylabel(&#39;foo&#39;)

However, this doesn&#39;t have the desired effect of placing all labels (tick and axis labels) on the right-hand side, while preserving the extent of the y-axis. In short, I would like a way to move all the y-axis labels from the left to the right.

matplotlib y-axis label on right side

I have a figure created in matplotlib (time-series data) over which are a series of 
    
    matplotlib.pyplot.axvline

lines. I would like to create labels on the plot that appear close to (probably on the RHS of the line and towards the top of the figure) these vertical lines.

Content Type	Original Author	Original Content on Stackoverflow
Question	aslum	View Question on Stackoverflow
Solution 1 - Html	James Sumners	View Answer on Stackoverflow
Solution 2 - Html	Rob Whelan	View Answer on Stackoverflow
Solution 3 - Html	Gert Grenander	View Answer on Stackoverflow

Can an input field have two labels?

Html Problem Overview

Html Solutions

Solution 1 - Html

Solution 2 - Html

Solution 3 - Html

CSS "and" and "or"

How large should my recv buffer be when calling recv in the socket library

Attributions