function menu_link(num)
{
	switch(num)

	{

	  case 1:window.location="about_us.php" ;break;

	  case 2:window.location="biz_consulting.php" ;break;

	  case 3:window.location="web_services.php" ;break;

	  case 4:window.location="product_design.php" ;break;

	  case 5:window.location="photography.php" ;break;

	  case 6:window.location="news.php" ;break;

	}
}