Find Out If The User's Browser Supports JavaScript And AJAX
Jul 22, 2007
I'm developing a site that will use technologies like JavaScript and AJAX. I want the site to be functional for people that has older browsers or JavaScript turned off so for this I need to find out if the user's browser is supporting JavaScript and AJAX.
How can I check this in an easy and simple way? I.e the user enters my website with JavaScript turned off at the moment. And then he turns it on and reloads the page. I would like to catch that he has turned JavaScript on. The same goes with AJAX (although there is no off/on setting for AJAX).
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Aug 17, 2009
I am looking for a piece of code where I can find out if client browser (any) supports flash. If no, then I need to display message.
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Nov 15, 2006
Would anyone know what browsers are supported by AJAX in general? I've been trying to find this at several sources, but it's never really mentioned.
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Feb 4, 2010
How can i verify whether my browser supports ajax or not using Jquery?
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Jul 20, 2006
How to judge whether a browser supports ActiveX?
Some browser like Firefox doens't support ActiveX by default, but can
do it with plugin support. Take Firefox for example, it has a whitelist
(activex.js) of allowed ActiveX. So, "new ActiveXObject" may not be a
good idea. The ActiveX control for test is possibly not in the
whitelist.
Is there any better way to do that?
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Oct 17, 2011
Is there a script that would direct Opera users past the front page of a web site (that uses flash) to the home page? For instance, a site I'm building as a favor to a church has a flash intro page that is fine with every browser but Opera. (Opera doesn't respond to Autoplay but places a large "Play" button where the flash is located.) On this particular page, the flash movie ends with an "Enter" instruction and is a hyperlink to the "home" page, so if an Opera user clicks that button, they're still not going to see the flash but are going to arrive at the "home" page. Is there a way to not even present them with the flash page, but to send them straight to the home page?
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Apr 12, 2001
I have a sniffer that sends Netscape and IE users to different locations. However, I want to send Netscape 6 users to the same location as IE users. Code:
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Jul 5, 2006
Is there a way to prevent users printing from the browser?
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Oct 2, 2005
Should I code for users without javascript? I don't know of anybody who doesn't have javascript turned on, but I have seen stats that say users without javascript run as high as 10%. I went to music.yahoo.com, I saw that they didn't code for no-javascript users, leading me to believe the no-javascript is a highly rare group.
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May 12, 2011
I know there are the event handlers onBeforeUnload and onunload, which work great 90% of the time.But what would happen if a user who was in the system had a power cut? Would it then be down to the database that stores who is logged in to go through logging users out who havent done anything for a while?
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Jul 23, 2005
Is it possible to get a client browser ip-adress when it access my webpage?
If the client is behind a network from a company can I get the ipadress
gateway where the client is behind or is it i only possible to get the
client ipadress?
I want to somehow deny everyone except the one with the correct
ip-adress/range.
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Mar 10, 2011
I have an image that I set to have a width of 100%. I want it to be no higher than the screen height. Its inside a div which itself has no height limit set. So I thought I could set the image height to screen.height. But when I do that, it seems to be larger than the visible client area of Internet Explorer. I want it to fit within that space. I realize the image might be distorted by doing that, but thats OK.
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Dec 7, 2011
I would like to know what is the the easiest way to get if the user is browsing internet in fullscreen?I use following code:
var windowHeight = $(window).height(); // returns height of browser viewport
var documentHeight = $(document).height(); // returns height of HTML document
var windowWidth = $(window).width(); // returns width of browser viewport
[code]....
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Feb 8, 2010
I need to find the position of an element on the page relative to the browser window. Its part of a popup calendar script (and no, they don't want to change it so please don't suggest jQuery date-picker etc) The script uses these functions [url]... to find the position of the anchor to pop up the calendar next to it.
Now the client wants to make the calendar fixed when the user scrolls so that it always stays on screen. The most graceful solution is using css position:fixed (I'm aware it doesn't work in IE6 - that's not a problem)
I've been using the getAnchorWindowPosition function to get the coordinates but the numbers its giving are wrong (to different degrees depending on the browser) It was only 200px out in the Y axis in Firefox but in IE7&8 its off the screen.
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Jan 9, 2010
I have a page that has a box where announements can be seen. What I want is that when the page loads a div containing some announcement text should show up within this box. The divshould remain within the box for about 10 seconds, whereafter it should start sliding to the left and eventuallydisapper. Butif the user during the sliding decides to Hover or clickwithin that div then the sliding should stop andthe div should move back to its initail position (so that the whole text can be read again). The div shouldnotbegin any sliding process as long as theuser is hoveringwithin the div. Howeverif the user hover out of the div then the sliding proces should begin again.
What I'm trying to achieve is to havea annoncement to show up in this box, only for 10 seconds,whereafterit should disapper (by sliding away). However if the user wants to reads the annonuncementhe should be able to do so, by hovering that announcement. And whenthe user hasfinished reading he can just hover away and the announcement will disapper within few secounds. I have done some work here and there. I have used the slider method from jqueryui and the hover methods and the initial sliding process when the page loads, but putting them all to gether is not going good.
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Mar 31, 2010
I have recently started seeing a script that puts like a dark grey transparent mask over the intire browser window, while putting up in the center a highlighted visable login form or some type of box requiring user input. Can anyone tell me if that is javascript and possibly point me in the direction where I can find out more about that effect.
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Dec 22, 2010
I'd like to have one form that has username and password at the top and if that is all the user supplies, then try to log him in. Otherwise, validate all fields for registration.
The problem then lies in the remainder of the form which has email, name and password confirmation. I still want to run validate on those fields but ONLY if the user has typed at least one character in any one of them.
Is there a way to do this? Or an example somewhere? Can validate for certain fields only be turned on IF a certain other condition is met?
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Jul 23, 2005
we are now developing complex business application using Ajax
framework. Could anyone point me to the editable javascript grid
control which supports XML loading. Good javascript API would be a
plus. And rather important thing - sometimes we need to represent
hierarchically structured data, so tree view is a must. In most grid
controls I looked through this last thing was missed.
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Aug 24, 2011
I have a shopping cart where if a user have problems of buying products or transactions, I want to give support via a chat programme. I want to reply users in different chat threads not like in a chat room as other people dont want to see others chat.I am new to this subject.
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May 14, 2007
is there a way of pointing to a directory where all JScripts are living and let it pick and choose what it needs from which scripts or do I have to do the picking through files each time I write a script that depends on others?
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Feb 16, 2007
Does anyone know any js code to find the whole height of a web page?
i am trying to make an image that moves from the top of the page to the bottom like a marqee. if i use document.body.offsetHeight to tell the image how far to move before returning to the top, the image only goes as far as the window height not the whole page so if you scroll down the image never reaches the bottom.
can anyone please tell me code to find the total page height or a good substitute for the marquee tag?
P.S. this is the code i'm using to act on an image placed at the top of the page with the variable winH found using document.body.offsetHeight:
var Timer1;
function down()
{
document.getElementById("zip").style.pixelTop += 2;
if (document.getElementById("zip").style.pixelTop > winH)
{
clearInterval(Timer1);
document.getElementById("zip").style.pixelTop -= (winH);
Timer1 = setInterval("down()", 15);
}
}
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Mar 20, 2006
Are there javascript functions to find the cursor position of a mouse? Also, are there javascript functions to find if the mouse cursor is within a listbox? A C# code sample is shown below:
Listbox lb; //lb is a listbox
Point cpos = lb.PointToClient(Cursor.Position); //find coordinates of mouse
if(lb.ClientRectangle.Contains(cpos)) //if mouse cursor is within the listbox
Are there any javascript functions which can do the same as the above c# methods?
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Jul 31, 2009
I'm new to jQuery and I'm having a bit of a problem manipulating AJAX results with jQuery methods.
I use an AJAX get and execute the find() method on the resulting output. But this seems to work only once. Subsequent attempts using the same selector in the find() argument don't work. Different selectors will work, but again, only once.
[Code]...
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Apr 21, 2010
function GetDepartmentTree() {
$.ajax({
type: "POST",
url: "Service/service.asmx/GetDepartmentTree",
[Code]....
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Nov 2, 2001
Is it possible, using client-side JavaScript, to test a series of download sites to see which is most likely to be the fastest file download site for a user?
I wondered whether JavaScript could download a portion of a file, or alternatively a small sample image file, just to test the download speed of each site, then report to the user the fastest, next fastest, and so on.
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Nov 1, 2011
i'm trying check the value for a node that is loaded with ajax, and to check it every certain time (3 seconds). I've come this far, but don't know where to go from here:
//Messenger frame...
<iframe src="http://settings.messenger.live.com/Conversation/IMMe.aspx?invitee=<?php echo $IsUserAvailable; ?>@apps.messenger.live.com&mkt=es-UY&useTheme=true&themeName=blue&foreColor=333333&backColor=E8F1F8&linkColor=333333&borderColor=AFD3EB&buttonForeColor=333333&buttonBackColor=EEF7FE&
[Code]....
I also read of a method called on(); but never know how to use it, because i can't think of the event i should attach to...
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