var layerPrefix='text';

function toggletext1(layer){
for( i=0; i<8; i++)
	{
	document.getElementById( layerPrefix + (i+1) ).style.visibility = 'hidden';
	document.getElementById( layerPrefix + (i+1) ).style.position = 'absolute';
	}
var state = document.getElementById( layer ).style.visibility;
if( state == 'visible' ){
	document.getElementById( layer ).style.visibility = 'hidden';
	document.getElementById( layer ).style.position = 'absolute';
	}
else
	{
	document.getElementById( layer ).style.visibility = 'visible';
	document.getElementById( layer ).style.position = 'relative';
	}
}

function toggletext2(layer){
for( i=0; i<4; i++)
	{
	document.getElementById( layerPrefix + (i+1) ).style.visibility = 'hidden';
	document.getElementById( layerPrefix + (i+1) ).style.position = 'absolute';
	}
var state = document.getElementById( layer ).style.visibility;
if( state == 'visible' ){
	document.getElementById( layer ).style.visibility = 'hidden';
	document.getElementById( layer ).style.position = 'absolute';
	}
else
	{
	document.getElementById( layer ).style.visibility = 'visible';
	document.getElementById( layer ).style.position = 'relative';
	}
}

function toggletext3(layer){
for( i=0; i<5; i++)
	{
	document.getElementById( layerPrefix + (i+1) ).style.visibility = 'hidden';
	document.getElementById( layerPrefix + (i+1) ).style.position = 'absolute';
	}
var state = document.getElementById( layer ).style.visibility;
if( state == 'visible' ){
	document.getElementById( layer ).style.visibility = 'hidden';
	document.getElementById( layer ).style.position = 'absolute';
	}
else
	{
	document.getElementById( layer ).style.visibility = 'visible';
	document.getElementById( layer ).style.position = 'relative';
	}
}
function toggletext4(layer){
for( i=0; i<2; i++)
	{
	document.getElementById( layerPrefix + (i+1) ).style.visibility = 'hidden';
	document.getElementById( layerPrefix + (i+1) ).style.position = 'absolute';
	}
var state = document.getElementById( layer ).style.visibility;
if( state == 'visible' ){
	document.getElementById( layer ).style.visibility = 'hidden';
	document.getElementById( layer ).style.position = 'absolute';
	}
else
	{
	document.getElementById( layer ).style.visibility = 'visible';
	document.getElementById( layer ).style.position = 'relative';
	}
}