function visi(nr,status) {
	
	if (document.layers)
	{
		document.background_normal.style.visibility = 'hide';
		document.background_large.style.visibility = 'hide';
		document.background_extralarge.style.visibility = 'hide';
		
		document.menu_normal.style.visibility = 'hide';
		document.menu_large.style.visibility = 'hide';
		document.menu_extralarge.style.visibility = 'hide';
				
		vista = (status == 'hide') ? 'hide' : 'show'
		//document.layers[nr].visibility = vista;
		
		if (nr == 'normal') {
		document.menu_normal.style.visibility = vista;
		document.background_normal.style.visibility = vista;
		
		createCookie('fontsize_state','normal',7);
		
		} else if (nr == 'large') {
		document.menu_large.style.visibility = vista;
		document.background_large.style.visibility = vista;
		
		createCookie('fontsize_state','large',7);
		
		} else if (nr == 'extralarge') {
		document.menu_extralarge.style.visibility = vista;
		document.background_extralarge.style.visibility = vista;
		
		createCookie('fontsize_state','extralarge',7);
		
		} 
		
	}
	else if (document.all)
	{
		document.all.background_normal.style.visibility = 'hidden';
		document.all.background_large.style.visibility = 'hidden';
		document.all.background_extralarge.style.visibility = 'hidden';
		
		document.all.menu_normal.style.visibility = 'hidden';
		document.all.menu_large.style.visibility = 'hidden';
		document.all.menu_extralarge.style.visibility = 'hidden';
				
		vista = (status == 'hide') ? 'hidden' : 'visible';
		//document.all[nr].style.visibility = vista;
		
		if (nr == 'normal') {
		document.all.menu_normal.style.visibility = vista;
		document.all.background_normal.style.visibility = vista;
		
		createCookie('fontsize_state','normal',7);
		
		} else if (nr == 'large') {
		document.all.menu_large.style.visibility = vista;
		document.all.background_large.style.visibility = vista;
		
		createCookie('fontsize_state','large',7);
		
		} else if (nr == 'extralarge') {
		document.all.menu_extralarge.style.visibility = vista;
		document.all.background_extralarge.style.visibility = vista;
		
		createCookie('fontsize_state','extralarge',7);
		
		} 
		
	}

	else if (document.getElementById)
	{
		
		document.getElementById('background_normal').style.visibility = 'hidden';
		document.getElementById('background_large').style.visibility = 'hidden';
		document.getElementById('background_extralarge').style.visibility = 'hidden';

		document.getElementById('menu_normal').style.visibility = 'hidden';
		document.getElementById('menu_large').style.visibility = 'hidden';
		document.getElementById('menu_extralarge').style.visibility = 'hidden';
		
		vista = (status == 'hide') ? 'hidden' : 'visible';
		//document.getElementById(nr).style.visibility = vista;
	
		document.getElementById('menu_'+nr).style.visibility = vista;
		document.getElementById('background_'+nr).style.visibility = vista;
		
		if (nr == 'normal') {

		createCookie('fontsize_state','normal',7);
		
		} else if (nr == 'large') {
		
		createCookie('fontsize_state','large',7);
		
		} else if (nr == 'extralarge') {
		
		createCookie('fontsize_state','extralarge',7);
		
		} 
		
	}
	}