I have a following problem:
from time to time an attack on my page is performed,
overloading the server. The administrators had to limit the
access to the page to some domains only. I would like to
keep the page open for everybody.
Probably I should introduce a JavaScript/CGI driven form and
let user to copy some letters etd. before letting him
entering the page.
I am sure there are many solutions to this problem around,
but I don't know what to search for. Can you give me some
tips where to start?
I think the attacs are just casual, there are no real
reasons why should anybody try to copy or destroy the page
(no commerece, no money to loose or gain), so probably I
should start with something simple.
I have a feeling that the solution to my problem is stupidly simple, but crawling through Google has provided me with none.
I'm trying to handle the login process on one of my clients' site using the AJAX functionality provided by jQuery.
Here is the $.ajax() call in question:
$.ajax({ "cache": false, "complete": function() {
[Code]....
I have already set the Content-Type header of the response to application/json, which made no difference. I also tried text/html and text/plain, but in these cases Internet Explorer shows the JSON as HTML or plain text in the browser window... *sigh*
Googling also gave me the suggestion to just use text/plain and eval() the response myself, but I remember reading elsewhere that this is pretty unsafe. I am unsure on the specifics on this, though.
I want to display a message like "In Progress" while my page is still loading. I am trying to achieve it by displaying a DIV, and then hidding it. My code is below. These images gets downloaded fast so hard to tell and test, but based on my logic you see any problem with this?
I'm programming a function that breaks a massive string (2 million + characters) into "manageable" chunks of 500,000 characters. The function goes as follows [code]...
As you can see, everything should work fine, and the function should return a stringified json array (which would be parsed and sent to a server) but the loop stops after the first interval. When I decrease the length of "v" using substr to 5 characters, the loop works fine. What could the problem be?
I have been struggling with a loop of mine. The loop should create a grid, of 204,000 squares(div's). And the total would create a grid field of 340 pixels by 600 pixels. All div's are sized 1 pixel.The idea is to create a grid, that shows temperature data in a gradient style, like a weather heat map. The data is collected from temperature sensors which are connected to a database.The only problem is that because it's such a massive amount of calculations to be calculated by javaScript, the whole thing freezes. Here is a sample of my code:
Code:
function makeGrid() { for (var i = 0; i < 8160; i++) {
[code]....
Another problem is, the grid should be reloaded every 5 seconds or less.Because that's the interval used by the temp sensors, and for the usage that's planned for the project, its really important that the data is constantly up to date. using another web based language are welcome, as long as they are combinable with PHP or AJAX. Or maybe there is a ready to use library that I dont know of. Couldn't find anything for jQuery.
I have been using jQuery for only a few weeks now, replacing all of my standard js in a massive Intranet PHP application with lovely and space-saving jQuery. However, I've been using FF to write and test code while the company standard is IE6. Nothing works in IE6 - nada, zip, zilch. It bugs out on the very first call to the js file and wants me to begin debugging. Am I correct in assuming that I'm going to have to go back to regular js? I'd love to get the company to upgrade to IE7 - I've not seen ANY complaints about IE7 and jQuery.
Is there a way to prevent the user from refreshing/reloading a particular page? Or any way to prevent a particular form from being posted/inserted twice?
I'm a WYSIWIG developer who can poke around in the code, modify existing scripts, etc. I need to prevent any user from loading a page twice, so they can only access a prize code one time. Setting a cookie is the first thing that comes to mind, which can be worked around by the motivated useras to other ways to block the user from accessing the page more than once? Something other than Javascript a better choice? Keep in mind my ideal solution is an existing bit of code that I can modify to my needs.
Is it possible to use javascript to trigger download of some text on the website? For example, if I have some text in a Div that I want the user to be able to download. Can the text be downloaded as a text file then?
have simple slideshow here:n i v o sport.com/i n l i f e/category/2 (please remove white spaces)on the right you will see "More in Travel:" and then arrowsscroll page a bit down and click arrow you will see that page scrolling jumps up. how to keep window positio
On this test page, if you click the contact link, then submit, the page jumps to the top.. i guess that page is refreshing?? How can I prevent this jump to the top and have the page stay still?
When I clicked on the download link on the homepage (for both production and development version), the file opened in the browser (see image) but it didn't download.
Is there any method which blocks the website from loading, if the browser using is not java script enabled? I have a webpage with some details to be entered. This website is designed in such a way that it checks the exceptions in the entry and alerts the user regarding it which is done using javascript. but for some users this feature is not working. I guess its the problem with the browser they use. So how can I alert them to enable Java by adding something to the script? Is there any way which prevents the page from loading if java is not enabled in the browser?
but for some reason if the page is long the whole page scrolls up so the top of the calendar is at the top of the browser, which actually hides the box that the date will end up in.
can anyone see how I can alter the code so that the page does not scroll up, but have the calendar show just below the box that the date will go in and the page does not scroll?
here is the full code that I am using to test this out with. code...
i can't figure this out, it was working fine before, and i did a few updates and now it only works when the button is pressed but not if i type into the form and press 'enter'. i don't want he page to reload at all. (also the entire wrapper for my page is hidden using css, a loading image is displayed until the onload event fires, then the wrapper uses jQuery's .slideDown(2000), so if javascript is off they won't even see the form, i'm not concerned about browsers with javascript disabled, i *only* want them to be able to type in the field and hit enter or click the send button to post the data via ajax with no page reload. i'll make it more accessible later)
Currently I'm developping an application with RoR and jQuery. Is the first time I try to use this wonderful library so I'm still a little naive Right now I'm having a problem that I have no idea how to solve. Documentation, google, etc have been useless for me in this point (probably because I'm not searching the right terms) So I'm creating an invitation system: simply, a form where you put an email address and when you hit submit it makes an ajax call. The server should answer with some data such 'how many invitations the user have left', possible errors and (if in development enviroment) the url for the invitation (debuggin purposes), everything coded in json.
The problem is that sometimes when sending an invitation firefox pops me up with a download dialog suggesting to save an "application/json" file with all the data that the server processed. My jQuery script should be taking care of handling it and it is not. I have told Rails to render the answer in json format: render :json => message.to_json message is a hash with a format similar to {:error => "There was an error, sorry", :invitations_left => current_user.invitations_left} And I have also specified jQuery the type expected in the return of the call:
The link below is the result of a product search on a website. It displays 2 results. However, the actual results (picture & information) that are displayed on the web page are not present in the "Page Source".
For example, if you search the page source for the string '860723' (which is one of the product numbers visible on the web page) it is not there. What is going on here? It looks to me like dummy images & information in the HTML are first loaded by the browser, and then that dummy info gets replaced by the real information via a javascript function. Is that what's going on?
[url]
I'm trying to retrieve that information by downloading the source in my PHP program. The problem is that the information I want isn't present in the source. It stands to reason that the information is somehow being sent to the browser because I can see it..
I'm using a code snippet to have a cursor placed in a form field once a page loads, see the below posted code.The form field in question is located below the fold.The problem is that when the page loads it will scroll the page downwards to show the form field, I don't want that happen. I only want the cursor to appear...not the whole page to scroll downwards when the page loads.what I can do to prevent the page from scrolling downward when using this code?It's happening with similar codes as well that places a cursor inside the form field.I only want the page to scroll downward when the user decides to scroll downward, not because of the cursor placement.
Code HTML4Strict: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
I have a site where the header, footer, menu and Google map remain present on most pages,but the copy in the main paragraph changes depending on which menu option is selected.The above is achieved using PHP includes and query strings.I'm using jQuery to 'fade in' the main body text when a page loads, and 'fade out' the text when a menu link is clicked on. It just looks nice, because all the stuff that is always present stays in place (I guess the browser caches it?) and just the main body text fades out and the new fades in.The thing is, the 'fade out' that is triggered by the 'click' event (on the menu link) tends to be interrupted by the browser moving on to the new page. I just want to the browser to stay for half a second so that the nice fade finishes properly. Ironically, when my connection is interrupted or the new page loads slowly, it looks at its best because the fade has time to finish
I've gotten .load to load content into a div but if the window is not at the top of the page it scrolls back to the top each time the new content is loaded but I wanted to avoid any sort of change on the page other than the content in the div. It seems pointless if the user has to scroll back down to the div where the content is each time? code...
Is there a way to keep the window in the same position? Also while I'm at it - is there a more efficient way to write this considering I have 9 pages or should I just write this code out for each instance?
