Seems like the answer is: No. Can&#39;t avoid getting a 404 error in the console unless you kick off a call to a server-side script to check file existence. 

How is it possible to change the content of this div, when one of the LINKS is clicked?

    &lt;div align=&quot;center&quot; id=&quot;content-container&quot;&gt;
        &lt;a href=&quot;#&quot; class=&quot;click cgreen&quot;&gt;Main Balance&lt;/a&gt;
        &lt;a href=&quot;#&quot; class=&quot;click cgreen&quot;&gt;PayPal&lt;/a&gt;
        &lt;a href=&quot;#&quot; class=&quot;click cgreen&quot;&gt;AlertPay&lt;/a&gt;
    &lt;/div&gt;


Change content of div - jQuery

I&#39;m having trouble understanding the behavior of the CSS `:after` property. According to the spec ([here](http://www.w3.org/TR/CSS21/selector.html#before-and-after) and [here](http://www.w3.org/TR/CSS21/generate.html#before-after-content)):

&gt; As their names indicate, the `:before` and `:after` pseudo-elements specify the location of content before and after an element&#39;s document tree content.

This doesn&#39;t seem to place restrictions on which elements can have a `:after` (or `:before`) property. However, it seems to only work with [specific elements](http://jsfiddle.net/tAMks/)... `&lt;p&gt;` works, `&lt;img&gt;` doesn&#39;t, `&lt;input&gt;` doesn&#39;t, `&lt;table&gt;` does. I&#39;m could test more, but the point is made. Note that this seems pretty consistent across browsers. **What determines whether an object can accept a `:before` and `:after` property?**

CSS :after not adding content to certain elements

Is it possible to check to see if a file/page exists via JavaScript but prevent the 404 Error from showing up in the console?

Check if file exists but prevent 404 error in console from showing up

<p>Is it possible to check to see if a file/page exists via JavaScript but prevent the 404 Error from showing up in the console?</p>


I have the following code to set the text of the button through javascript code , but it does not work it remains same the text remains same.

    function showFilterItem() {
        if (filterstatus == 0) {
            filterstatus = 1;
            $find(&#39;&lt;%=FileAdminRadGrid.ClientID %&gt;&#39;).get_masterTableView().showFilterItem();
            document.getElementById(&quot;ShowButton&quot;).innerHTML = &quot;Hide Filter&quot;;
        }
        else {
            filterstatus = 0;
            $find(&#39;&lt;%=FileAdminRadGrid.ClientID %&gt;&#39;).get_masterTableView().hideFilterItem();
            document.getElementById(&quot;ShowButton&quot;).innerHTML = &quot;Show filter&quot;;
        }
    }

And my html button code is

      &lt;input  class=&quot;button black&quot; id=&quot;ShowButton&quot; type=&quot;button&quot; runat=&quot;server&quot;  value=&quot;Show Filter&quot; onclick=&quot;showFilterItem()&quot; /&gt;
                   



How to change the buttons text using javascript

Is it possible to tell whether a scroll event was done by the browser or by the user? Specifically, when using the back button a browser may jump to the last known scroll position. If I bind to scroll event how can I tell whether this was caused by user or browser? 

    $(document).scroll( function(){ 
        //who did this?!
    });

I see three types of situations that cause scrolling in a browser.

1. The user performs some action. For example, uses mousewheel, arrow keys, page up/down keys, home/end keys, clicks the scrollbar or drags its thumb.
2. The browser scrolls automatically. For example, when using the back button in your browser it will jump to the last known scroll position automatically.
3. Javascript scrolls. For example, `element.scrollTo(x,y)`.

Detect whether scroll event was created by user

Lets say i have the value 10 assigned to a variable;

    var values = 10;

and i want to run a specific function if the value is a positive

    if(values = +integer){ 
        //do something with positive 
    } else { 
        //do something with negative values 
    }

How would this be achieved?

How to check the value given is a positive or negative integer?

I am using below code for sample menu.

        &lt;html&gt;
    &lt;head&gt;
    &lt;title&gt;Tree Demo&lt;/title&gt;
    &lt;script type=&quot;text/javascript&quot; src=&quot;jquery.js&quot;&gt;&lt;/script&gt;
    &lt;script type=&quot;text/javascript&quot; src=&quot;jquery.jstree.js&quot;&gt;&lt;/script&gt;
    &lt;script type=&quot;text/javascript&quot;&gt;
    	$(document).ready(function() {
    /* 		 $(&quot;#main&quot;).jstree({
    		        &quot;themes&quot; : {
    		            &quot;theme&quot; : &quot;default&quot;,
    		            &quot;dots&quot; : false,
    		            &quot;icons&quot; : false
    		        },
    		        &quot;plugins&quot; : [ &quot;themes&quot;, &quot;json_data&quot;, &quot;ui&quot;],
    		        &quot;json_data&quot; : {
    		            &quot;ajax&quot; : {
    		                &quot;url&quot; : &quot;jsondata.json&quot;,
    		                &quot;data&quot; : function (n) {
    		                    return { id : n.attr ? n.attr(&quot;id&quot;) : 0 };
    		                }
    		            }
    		        }
    		});
    		 
    		 $(&quot;#main&quot;).bind(&quot;open_node.jstree&quot;, function (e, data) {
    			         // data.inst is the instance which triggered this event
    			         console.log(data);
    			         console.log($.data(data.rslt.obj[0],&quot;folder_name&quot;));
    		});
    		$(&quot;#main&quot;).bind(&quot;select_node.jstree&quot;, function (e, data) {
    	         // data.inst is the instance which triggered this event
    	         console.log(data);
    	         console.log($.data(data.rslt.obj[0],&quot;folder_name&quot;));
    		}); */
    		
    		 $(&quot;#main1&quot;).jstree({
    		        &quot;themes&quot; : {
    		            &quot;theme&quot; : &quot;default&quot;,
    		            &quot;dots&quot; : false,
    		            &quot;icons&quot; : false
    		        },
    		        &quot;plugins&quot; : [ &quot;themes&quot;, &quot;html_data&quot;]
    		});
     
    	});
    &lt;/script&gt;
    &lt;/head&gt;
    &lt;body&gt;
    	&lt;div id=&quot;main1&quot;&gt;
    		&lt;ul&gt;
    			&lt;li&gt;&lt;a href=&quot;javascript:void(0)&quot;&gt;Home Folder&lt;/a&gt;
    				&lt;ul&gt;
    					&lt;li&gt;&lt;a href=&quot;javascript:void(0)&quot;&gt;Sub Folder1&lt;/a&gt;&lt;/li&gt;
    					&lt;li&gt;&lt;a href=&quot;javascript:void(0)&quot;&gt;Sub Folder2&lt;/a&gt;&lt;/li&gt;
    				&lt;/ul&gt;&lt;/li&gt;
    			&lt;li&gt;&lt;a href=&quot;javascript:void(0)&quot;&gt;Shared Folders&lt;/a&gt;
    				&lt;ul&gt;
    					&lt;li&gt;&lt;a href=&quot;javascript:void(0)&quot;&gt;Shared Folder1&lt;/a&gt;&lt;/li&gt;
    					&lt;li&gt;&lt;a href=&quot;javascript:void(0)&quot;&gt;Shared Folder2&lt;/a&gt;&lt;/li&gt;
    				&lt;/ul&gt;&lt;/li&gt;
    		&lt;/ul&gt;
    	&lt;/div&gt;
    	&lt;div id=&quot;main&quot;&gt;
    	&lt;/div&gt;
    &lt;/body&gt;
    &lt;/html&gt;


when i run the above code in IE browsers it shows top of the page(below the URL bar) like

&quot; To help protect your security , internet explorer has restricted this webpage from running scripts or Activex controls that could access your computer. click for options.. &quot;

when i rightclick and click allowed blocked content, it runs.but i want without this popup message i need to run the code...how can i automatically run this one?...


How to automatically allow blocked content in IE?

I&#39;m checking `if(response[0].title !== undefined)`, but I get the error:

&gt; Uncaught TypeError: Cannot read property &#39;title&#39; of undefined.


Content Type	Original Author	Original Content on Stackoverflow
Question	Muers	View Question on Stackoverflow
Solution 1 - Javascript	Muers	View Answer on Stackoverflow

Check if file exists but prevent 404 error in console from showing up

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Solution 1 - Javascript

CSS :after not adding content to certain elements

Change content of div - jQuery

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