I know this solutions exists but doubt whether its existence is ubiquitous. The Wikipedia article on Ajax [ http://en.wikipedia.org/wiki/Ajax_(programming) ] mentions it in 'Cons'.
Straight to the point. One very common problem with ajax->dynamically updated pages is that, since content is fetched and updated within the page itself, the original webpage url doesn't change and hence it is impossible to bookmark/remember them.
For example, the video comments on youtube. If a video has ten pages of comments, when clicking the page numbers, the comments are updated dynamically without the url ever changing. So what if you want to bookmark page no:9 ? Not possible.
The simplest solution is to make use of the 'url fragment identifier' or whatever that comes after the # in a url. eg: http://something.com/page#here-it-goes
On page load, something like RegEx could be used to parse the query
Road to Geekdome - barely a blog, since 2004
If it weren't for C, we'd all be programming in BASI and OBO