function sms()
{
var x=((screen.width-515)/2);
var y=((screen.height-330)/2);
smsokno=window.open('http://www.gajba.net/sms/sms.php','u','width=515,height=300,screenX='+x+',screenY='+y+',top='+y+',left='+x+',resizable=yes,scrollbars=yes');
smsokno.focus();
}