>>>also instread of using XMLHttpRequest a hidden iframe will generally > >work just as well > >Exact, except that an IFRAME is also an HTTP request.
As is XMLHttpRequest. All the solutions mentioned so far (xmlHTTPRequest, iFrame and an image) are all HTTP requests. They all have the overhead of making a request in the HTTP format and getting a response. I really doubt that for sending up resolution data any of them are markedly faster or slower than the others. Personally I find using an image the most reliable for the task at hand (it's more backward compatible) but that's a personal preference. If I had to transfer more data however I wouldn't dream of using an image (sent is limited to the amount of the data allowable on the URL and response data is limited to the amount in a cookie). But for res data I'm only passing a comma-separated list of 6 numbers (height, width, availHeight, availWidth, color depth and JS version). Passing it on the query string is quick and simple. Jim Davis ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Discover CFTicket - The leading ColdFusion Help Desk and Trouble Ticket application http://www.houseoffusion.com/banners/view.cfm?bannerid=48 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:199229 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
