happy friday all - quesiton. i have ajax page transitions and i´m wanting to enable my back button -- the solutions i´ve seen either seem to very browser dependent or do something like
document.location.hash = "#"+"newpagehash" and then periodically check the windows hash to see if it has changed. so my question is this... i have no idea really how much calling a simple periodical weights on your cpu... i know i can use things like firebugs profile function but truth is i dont have any feeling how to judge its output - whats fine and what is bad? does anyone have (or have a link to) advice or guidelines on this subject? would checking for a hash change every ... 250 or 500ms be overkill? are there better ways to handle browser back buttons (in some cross browser way)? thanks, brook
