AJAX expert by fchao4451

need help with complicated javascript tasks for urgent deadline (24 hours) tasks will include javascript animations with modals, and changing current calls with php to ajax. the amount of work is small,...

How can I prevent a form from being submitted more than once

I recently found a huge security problem with my PM system that allows users to send a message as much as they want with a for loop in the address bar. Someone put this into the address bar:javascript:for(x=0;x<10000;x++)...

Ajax database browser page Refresh changes the page instead

I am facing a problem with my AJAX and PHP database. I bet many other new Ajax programmers would also be facing this problem. Although I have shortened the code but it is still somehow lengty, so please...

Play framework longpolling in online game

I’m working on a browser game with the play framework, and I definitely need longpolling, but I don’t quite understand how to use it. WebSockets would be perfect for this, but it’s not...

Don’t load hidden images

I have a bunch of hidden images on my website. Their container DIVs have style=”display: none”. Depending on the user’s actions, some images may be revealed via javascript. The problem...

How do I restrict the WCF service called by an ASP.NET AJAX

I have an AjaxControlToolkit DynamicPopulate control that is updated by calls to a WCF service. I know I can check the HttpContext in the service request to see if a user of the page (and thus, the control)...

PHP, AJAX and Java

I have a search engine which is implemented in Java. It’s very complicated. I want to use a dynamic interface for the client so I guess I should go with AJAX. I absolutely don’t know NOTHING...