function show_prev() { 
  eval("over="+SetOver('prev')); 
  moveTo(over, 197, 60); 
	showObject(over);
}
function show_next() { 
  eval("over="+SetOver('nxt')); 
	if (ns4) { moveTo(over, 701, 60); }
  else { moveTo(over, 694, 60); }
	showObject(over);
}

function hide_prev() {
  if (ns4) { 
		document.prev.visibility = "hide"; 
		}
  else  
		if (ie4) { 
			prev.style.visibility = "hidden"; 
		} 
	else  
		if (ns6) { 
			document.getElementById('prev').style.visibility = "hidden"; 
		} 
	}

function hide_next() {
  if (ns4) { 
		document.nxt.visibility = "hide"; 
		}
  else  
		if (ie4) { 
			nxt.style.visibility = "hidden"; 
		} 
	else  
		if (ns6) { 
			document.getElementById('nxt').style.visibility = "hidden"; 
		} 
	
}