garbaged replace and session

Hi, I've got a strange problem : When I open a browser window ( and only when I open it for the frist time ) on an autentification page ( for starting a session ) I've got a display error : In the php script I use eregi_replace to display a HTML page generate with Adobe Golive ( by a friend ). This HTML page contain some <MAP> beacons. The line : "?webmestre=1b280fcaee37cf8d175a762cc3ac4b53"#" coords=....." apears on the screen. After "#" it's the following of map area declaration (*). The very strange is that it appears 3 times for the first map, and once for each else. When I reload the page, the display is correct. If I use the browser window to ride on the web and come againt on this first page, the error doesn't appear. If someone have an idea on what appends ...... Thanks..... Pierre. PS : sory for ones who have ever read my first mail but I thought my subject wasn't relevant.