    jQuery(&#39;#main&#39;).css(&#39;opacity&#39;) = &#39;0.6&#39;;

should be

    jQuery(&#39;#main&#39;).css(&#39;opacity&#39;, &#39;0.6&#39;);

Update:

http://jsfiddle.net/GegMk/ if you type in the text box. Click away, the opacity changes.

Try with this :

    jQuery(&#39;#main&#39;).css({ opacity: 0.6 });

Try this:

    jQuery(&#39;#main&#39;).css(&#39;opacity&#39;, &#39;0.6&#39;);

or

    jQuery(&#39;#main&#39;).css({&#39;filter&#39;:&#39;alpha(opacity=60)&#39;, &#39;zoom&#39;:&#39;1&#39;, &#39;opacity&#39;:&#39;0.6&#39;});

if you want to support **IE7**, **IE8** and so on.

try using .animate instead of .css or even just on the opacity one and leave .css on the display?? may b 

    jQuery(document).ready(function(){
    if (jQuery(&#39;#nav .drop&#39;).animate(&#39;display&#39;) === &#39;block&#39;) {
        jQuery(&#39;#main&#39;).animate(&#39;opacity&#39;) = &#39;0.6&#39;;


I&#39;ve created this demo:

http://polishwords.com.pl/dev/pdfjs/test.html

It displays one page. I would like to display all pages. One below another, or place some buttons to change page or even better load all standard controls of PDF.JS like in Firefox. How to acomplish this?

How to display whole PDF (not only one page) with PDF.JS?

I want to run a python script in a CENTOS server:

    #!/usr/bin/env python
    import socket
    try:    
    	import thread 
    except ImportError:
    	import _thread as thread #Py3K changed it.
    class Polserv(object):
    	def __init__(self):
    		self.numthreads = 0
    		self.tidcount   = 0
    		self.port       = 843
    		self.sock       = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    		self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    		self.sock.bind((&#39;100.100.100.100&#39;, self.port))
    		self.sock.listen(5)
    	def run(self):
    		while True:
    			thread.start_new_thread(self.handle, self.sock.accept()) 
    	def handle(self,conn,addr):
    		self.numthreads += 1
    		self.tidcount   += 1
    		tid=self.tidcount
    		while True:
    			data=conn.recv(2048)
    			if not data:
    				conn.close()
    				self.numthreads-=1
    				break
    			#if &quot;&lt;policy-file-request/&gt;\0&quot; in data:
    			conn.sendall(b&quot;&lt;?xml version=&#39;1.0&#39;?&gt;&lt;cross-domain-policy&gt;&lt;allow-access-from domain=&#39;*&#39; to-ports=&#39;*&#39;/&gt;&lt;/cross-domain-policy&gt;&quot;)
    			conn.close()
    			self.numthreads-=1
    			break
    		#conn.sendall(b&quot;[#%d (%d running)] %s&quot; % (tid,self.numthreads,data) )
    Polserv().run()
Im using `$ python flashpolicyd.py` and it works fine... 
The question is: How to keep this script running even after I close the terminal(console)?



How to make Python script run as service?

What&#39;s wrong? I want to change the opacity if `#nav .drop` is `display:block;`

    jQuery(document).ready(function(){
        if (jQuery(&#39;#nav .drop&#39;).css(&#39;display&#39;) === &#39;block&#39;) {
            jQuery(&#39;#main&#39;).css(&#39;opacity&#39;) = &#39;0.6&#39;;
        }
    });

jQuery CSS Opacity

What's wrong? I want to change the opacity if <code>#nav .drop</code> is <code>display:block;</code>
<pre><code class="hljs language-javascript">jQuery(document).ready(function(){
 if (jQuery('#nav .drop').css('display') === 'block') {
 jQuery('#main').css('opacity') = '0.6';
 }
});
</code></pre>

Is there any difference between

    $(&#39;input.current_title&#39;, &#39;#storePreferences&#39;).prop(&#39;disabled&#39;, false);

and

    $(&#39;#storePreferences input.current_title&#39;).prop(&#39;disabled&#39;, false);

?

What is &quot;context&quot; in jQuery selector?

This works:

    $(myObj).attr(&quot;data-test-1&quot;, num1);
    $(myObj).attr(&quot;data-test-2&quot;, num2);

But this doesn&#39;t:

    $(myObj).attr({
      data-test-1: num1,
      data-test-2: num2
    });

Am I missing something really obvious here?

Is it possible to set multiple data attributes using the jQuery.attr() function?

I want to stop this interval in the `error` handler from running repeatedly. Is that possible, and if so, how? 

    // example code
    $(document).on(&#39;ready&#39;,function(){
        setInterval(updateDiv,3000);
    });
    
    function updateDiv(){
        $.ajax({
            url: &#39;getContent.php&#39;,
            success: function(data){
                $(&#39;.square&#39;).html(data);
            },
            error: function(){
                $.playSound(&#39;oneday.wav&#39;);
                $(&#39;.square&#39;).html(&#39;&lt;span style=&quot;color:red&quot;&gt;Connection problems&lt;/span&gt;&#39;);
                // I want to stop it here
            }
        });
    }

Stop setInterval

I wonder how to make a sticky header shrink(with animation) when you scroll down the page and goes back to normal state when the page is scrolled up to the top. Here are two examples to clearify:

http://themenectar.com/demo/salient/

http://www.kriesi.at/themes/enfold/

I get the part to make it fixed, but how should I do to shrink my header when the user scrolls down?

Thanks a ton

jQuery - Sticky header that shrinks when scrolling down

I have a map in my java sevlet and converting it to a json format that works right.

When I do this function below it creates a drop down, but it puts every character as an option??
This is what I got:

    $(document).ready(function(){
        var temp= &#39;${temp}&#39;;
        //alert(options);
        var $select = $(&#39;#down&#39;);                        
        $select.find(&#39;option&#39;).remove();                          
        $.each(temp, function(key, value) {              
            $(&#39;&lt;option&gt;&#39;).val(key).text(value).appendTo($select);     
        });
    });

map content in JSON format

    {&quot;1&quot; : &quot;string&quot;,&quot;2&quot; : &quot;string&quot;}

jQuery-- Populate select from json

I have this table : 

    &lt;body&gt;
        &lt;table id=&quot;page&quot; &gt;
            &lt;tr id=&quot;header&quot; &gt;
                &lt;td colspan=&quot;2&quot; id=&quot;tdheader&quot; &gt;je suis&lt;/td&gt;
            &lt;/tr&gt;
            &lt;tr&gt;
                &lt;td&gt;1&lt;/td&gt;
                &lt;td&gt;2&lt;/td&gt;
            &lt;/tr&gt;
        &lt;/table&gt;
    &lt;/body&gt;

and here is the css



    html, body, #page {
        height:100%;
        width:100%;
        margin:0;
        padding:0;
    }
    
    #header {
        margin:0;
        padding:0;
        height:20px;
        background-color:green;
    }

and I want to remove all margin and padding but always I have that : 

![enter image description here][1]

How can I resolve this?

  [1]: ![http://i.stack.imgur.com/o7NHT.png][1]


  [1]: http://i.stack.imgur.com/nS0Ud.png

Remove all padding and margin table HTML and CSS

I am working on a Responsive Web Site with CSS Media Queries.

Is the following a good organization for devices?
Phone, Ipad (Landscape &amp; Portrait), Desktop and Laptop, Large Screen

What are the common media queries break-point values? 

I am planning to use the following breakpoints:

 - 320: Smartphone Portrait
 - 481: Smartphone Landscape
 - 641 or 768 ???: IPad Portrait ???
 - 961: IPad Landscape / Small Laptop ???
 - 1025: Desktop and Laptop
 - 1281: Wide Screen

What do you think? I have a few doubts as ??? points.


Common CSS Media Queries Break Points

I&#39;m trying to get an image to fit within a specific size div. Unfortunately, the image isn&#39;t conforming to it and is instead proportionally shrinking to a size that isn&#39;t big enough. I&#39;m not sure what the best way is to go about getting the image to fit inside it is. 

If this isn&#39;t enough code, I&#39;d be happy to supply more, and I&#39;m open to fixing any other errors that I am overlooking.

Here is the HTML

    &lt;div class=&quot;span3 top1&quot;&gt;  
            &lt;div class=&quot;row&quot;&gt;
              &lt;div class=&quot;span3 food1&quot;&gt;
                  &lt;img src=&quot;images/food1.jpg&quot; alt=&quot;&quot;&gt;
              &lt;/div&gt;
            &lt;/div&gt;
                &lt;div class=&quot;row&quot;&gt;
                  &lt;div class=&quot;span3 name1&quot;&gt;
                      heres the name
                &lt;/div&gt;
                &lt;/div&gt;
              &lt;div class=&quot;row&quot;&gt;
                  &lt;div class=&quot;span3 description1&quot;&gt;
                      heres where i describe and say &quot;read more&quot;
                &lt;/div&gt;
                &lt;/div&gt;
    
    
          &lt;/div&gt;


My CSS


    .top1{
    
    	height:390px;
    	background-color:#FFFFFF;
        margin-top:10px;
       
    
    }
    
    .food1{
    
    background-color:#000000;
    height:230px;
    
    
    }
    
    .name1{
    
    background-color:#555555;
    height:90px;
    
    }
    
    .description1{
    
    background-color:#777777;
    height:70px;
    
    
    }

Adjusting and image Size to fit a div (bootstrap)

The default Bootstrap grid system utilizes 12 columns with each span having `30px` gutter as below. *Gutters are the white space between columns.* Gutter width seems to be between `20px` - `30px`. Let&#39;s assume it&#39;s `30px` here.

![enter image description here][1]


  [1]: http://i.stack.imgur.com/rJS6T.png

I want to remove the gutter space for a specific `div`, so that there will be no gutter space in the row. Each span will be next to each other with no gutter.

The problem is if I remove the margin `30px` (gutter) it leaves `360px` (12 * `30px`) at the end of the row.

Given that I want to remove gutter space for a specific `div` only. Let&#39;s assume that it&#39;s for `div`s which are in the `main_content` `div`.

    div#main_content div{
      /*
     no gutter for the divs in main_content
     */
    }

How can I remove the gutter for a specific `div` without loosing Bootstrap responsiveness and not leaving space at the end of the row?

Remove gutter space for a specific div only

The default data block size of HDFS/Hadoop is 64MB. The block size in the disk is generally 4KB.

What does 64MB block size mean? -&gt;Does it mean that the smallest unit of reading from disk is 64MB?

If yes, what is the advantage of doing that?-&gt; easy for continuous access of large files in HDFS?

Can we do the same by using the disk&#39;s original 4KB block size?

data block size in HDFS, why 64MB?

The code below makes error.. How could I resolve this problem?

    {% block header %}
        &lt;link rel=&quot;stylesheet&quot; href=&quot;{% static &#39;shop/style.css&#39; %}&quot; /&gt;
    {% endblock %}

The error output: 

&gt; TemplateSyntaxError : Invalid block tag: &#39;static&#39;, expected &#39;endblock&#39;



Django : Is it impossible to static tag into block tag?

So what I want to have is a class that may get a closure passed to it in a function, it may also at some point want to disregard a that closure. How can I check if the closure variable is set and hwo can I delete it when I am done with it?
 

&gt; Cannot invoke &#39;!=&#39; with an argument list of type &#39;(@lvalue (sucsess:
&gt; Bool!, products: [AnyObject]!) -&gt; ()?, NilLiteralConvertible)&#39; Type
&gt; &#39;(sucsess: Bool!, products: [AnyObject]!) -&gt; ()?&#39; does not conform to
&gt; protocol &#39;NilLiteralConvertible&#39;

 
 

    class someClass{
        //typealias completionHandlerClosureType = (sucsess:Bool!, items:[AnyObject]!)-&gt;()
        var completionHandler:(sucsess:Bool!, items:[AnyObject]!)-&gt;()?
        var hitpoints = 100
        var someset = [&quot;oh no!&quot;,&quot;avenge me!&quot;]
        init(){}
    
        func getHitFunc(impact:Int, passedCompletionsHandler:(sucsess:Bool!, items:[AnyObject]!)-&gt;()){
            completionHandler = passedCompletionsHandler
            hitpoints = hitpoints - impact
        }
        
        func checkIfDead{
            if hitpoints&lt;=0 {               // The error received
                if completionHandler != nil{// Cannot invoke &#39;!=&#39; with an argument list of type 
                                            //&#39;(@lvalue (sucsess: Bool!, products: [AnyObject]!) -&gt; ()?, NilLiteralConvertible)&#39; 
                    //run the handler if dead
                    completionHandler(sucsess: true, items: someset)
                    //do not run it again
                    completionHandler = nil     //Type &#39;(sucsess: Bool!, products: [AnyObject]!) -&gt; ()?&#39; does not conform to protocol &#39;NilLiteralConvertible&#39;
                }
            }
            else{
                completionHandler = nil      //Type &#39;(sucsess: Bool!, products: [AnyObject]!) -&gt; ()?&#39; does not conform to protocol &#39;NilLiteralConvertible&#39;
            }
        }
    }



optional closure and check if it is nil

Consider the following method

    - (void)methodWithArg:(NSString *)arg1 andArg:(NSString *)arg2 completionHandler:(void (^)(NSArray *results, NSError *error))completionHandler;

With the new `nonnull` and `nullable` [annotation keywords][1] we can enrich it as follows:

    - (void)methodWithArg:(nonnull NSString *)arg1 andArg:(nullable NSString *)arg2 completionHandler:(void (^)(NSArray *results, NSError *error))completionHandler;

but we also get this warning:

&gt; Pointer is missing a nullability type specifier (__nonnull or
&gt; __nullable)

It refers to the third parameter (the block one).

The [documentation][1] doesn&#39;t cover with examples how to specify the nullability of block parameters. It states verbatim 

&gt; You can use the non-underscored forms nullable and nonnull immediately
&gt; after an open parenthesis, as long as the type is a simple object or
&gt; block pointer.

I tried putting one of the two keywords for the block (in any position) without any luck. Also tried the underscore prefixed variants (`__nonnull` and `__nullable`).

Therefore my question is: how can I specify the nullability semantic for block parameters?

  [1]: https://developer.apple.com/swift/blog/?id=25


How to use nonnull and nullable Objective-C keywords in block-based API method

I am trying to achieve something like this:

![this effect][1]

When I hover over an image, I would like to put on that image this dark color with some text and the icon.

I am stuck here. I found some tutorials but they didn&#39;t work out for this case.
Also, another issue -- every image has a different height. The width is always the same.

How can this effect be achieved?


  [1]: http://i.stack.imgur.com/Wtjqz.png

How to make in CSS an overlay over an image?

Is there an option to include opacity on the colors you define to be your primary/secondary colors in the sass variables? In the fashion of the lighten($color, amount) function? 



Setting opacity on $primary-color in sass

I have an element with text in it. Whenever I decrease the opacity, then I decrease the opacity of the WHOLE body. Is there any way I can just make the `background-image` darker, and not everything else? 

    background-image:url(&#39;http://fc02.deviantart.net/fs71/i/2011/274/6/f/ocean__sky__stars__and_you_by_muddymelly-d4bg1ub.png&#39;);

Content Type	Original Author	Original Content on Stackoverflow
Question	Mike	View Question on Stackoverflow
Solution 1 - Jquery	rdp	View Answer on Stackoverflow
Solution 2 - Jquery	Alarid	View Answer on Stackoverflow
Solution 3 - Jquery	ed1nh0	View Answer on Stackoverflow
Solution 4 - Jquery	hoppie	View Answer on Stackoverflow

jQuery CSS Opacity

Jquery Problem Overview

Jquery Solutions

Solution 1 - Jquery

Solution 2 - Jquery

Solution 3 - Jquery

Solution 4 - Jquery

How to make Python script run as service?

How to display whole PDF (not only one page) with PDF.JS?

Attributions