if(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE9.0"))
$browser= "Internet Explorer 9.0";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 8.0"))
$browser= "Internet Explorer 8.0";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 7.0"))
$browser= "Internet Explorer 7.0";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"MSIE 6.0"))
$browser= "Internet Explorer 6.0";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/5"))
$browser= "Firefox 5";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/4"))
$browser= "Firefox 4";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/3"))
$browser= "Firefox 3";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"Firefox/2"))
$browser= "Firefox 2";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"Chrome"))
$browser= "Google Chrome";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"Safari"))
$browser= "Safari";
elseif(strpos($_SERVER["HTTP_USER_AGENT"],"Opera"))
$browser= "Opera";
else $browser = $_SERVER["HTTP_USER_AGENT"];