<?php
function check_user($username, $password)
	{
	$sql 	= "SELECT * FROM user WHERE username='$username' AND password='$password'";
	$data	= mysql_query($sql) or die (mysql_error());
	$num 	= mysql_num_rows($data);
	if($num==1)
		{
		return true;
		}
	else
		{
		return false;
		}
	}
?>