browser-state

I am using the jQuery BBQ: Back Button & Query Library plugin to create a page that pulls in dynamic content when a link is clicked. When the link is clicked the hash is changed and new content is pulled in (the 'default' action of clicking a href is therefore disabled.) That part works just fine, but there is a problem. Example of my problem Say the "home" page has a DIV a number of images in it and a list of links ... Page One Page Two Page Three The images may take a while to load, in the meantime the user will often not wait for them to load fully and click the "Page One" link. This clears

jQuery hashchange event For me it looks like most mature solution right now(please correct me if I'm wrong). I really like this plugin for manipulating with browsers hashes. It simplifies js code a lot in some cases. I really want to start use it extensively but I have a question for you. Accordingly to the source it uses loop and check whether hash anchor was changed every 50 ms. What about performance? Can I overuse hashchange? Can it lead to some significant slowdown in performance? If so in which cases? Checking a simple string property every 50ms is an infinitesimal cost compared to

<script type="text/javascript> var x = 0; //this occurs in the beginning of the page. $("#button").onclick{ x = 1; } </script> Let's say the variable "x" changes to 1. Then the user clicks a link. When the user clicks "back", will x be 0 or 1? It will be 0 . The browser does not cache the state of Javascript variables between page loads. Update This is not the case in browsers such as Firefox. Please see Trey's answer. Trey Hunner As detailed in another question , the real answer to this question is it depends on the browser . In Firefox and Opera, the below page will preserve the state of 1