function showPage (p) {
	if (p==1) {
		obj = document.getElementById ("page4");	obj = obj.style;	obj.visibility = 'hidden';	obj.display = 'none';
		obj = document.getElementById ("page5");	obj = obj.style;	obj.visibility = 'hidden';	obj.display = 'none';
		obj = document.getElementById ("page1");	obj = obj.style;	obj.visibility = 'visible';	obj.display = 'block';
		obj = document.getElementById ("z");		obj.className = 'current';
		obj = document.getElementById ("p");		obj.className = '';
		obj = document.getElementById ("h");		obj.className = '';
	}
	if (p==4) {
		obj = document.getElementById ("page1");	obj = obj.style;	obj.visibility = 'hidden';	obj.display = 'none';
		obj = document.getElementById ("page4");	obj = obj.style;	obj.visibility = 'visible';	obj.display = 'block';
		obj = document.getElementById ("page5");	obj = obj.style;	obj.visibility = 'hidden';	obj.display = 'none';
		obj = document.getElementById ("h");		obj.className = '';
		obj = document.getElementById ("z");		obj.className = '';
		obj = document.getElementById ("p");		obj.className = 'current';
	}
	if (p==5) {
		obj = document.getElementById ("page1");	obj = obj.style;	obj.visibility = 'hidden';	obj.display = 'none';
		obj = document.getElementById ("page4");	obj = obj.style;	obj.visibility = 'hidden';	obj.display = 'none';
		obj = document.getElementById ("page5");	obj = obj.style;	obj.visibility = 'visible';	obj.display = 'block';
		
		obj = document.getElementById ("z");		obj.className = '';
		obj = document.getElementById ("p");		obj.className = '';
		obj = document.getElementById ("h");		obj.className = 'current';
	}
	
}