Pictures and caches

Hi! The thing I want to do is to copy a picturefile to another picturefile. The thing is that I want to copy this file, show it , and then delete it (when it has been shown) .Is this possible? I want to do this, because of avoiding problems with cache when uploading file through an admin-online-system... (the customer uses IE) When I delete the file in code down below, the picture is not shown (I guess because the browser hasn't rendered out all info?) If you want more code, tell me :-) Best regards /Gustav Wiberg $fileName = "pictures/products/$dbIDProduct1" . "_small"; $ran = strval(mktime()); //Current time if (file_exists($fileName . ".gif")) { copy($fileName . ".gif", "pictures/products/1_$ran.gif"); showpicture("pictures/products/1_$ran.gif", $dbProductName1, 300, 150, "top"); //deletefile("pictures/products/1_$ran.gif"); }