function menu_link(num)
{
	switch(num)

	{

	  case 1:window.location="index.htm" ;break;

	  case 2:window.location="stress.htm" ;break;

	  case 3:window.location="parcours.htm" ;break;

	  case 4:window.location="activites.htm" ;break;

	  case 5:window.location="contact.htm" ;break;

	  case 6:window.location="sites_amis.htm" ;break;

	}
}