function showhide(elementID) {
	if (!document.getElementById(elementID)) return false;
	var element = document.getElementById(elementID);
	var state = element.style.display;
	if (state == 'block') {
		state = 'none';
	} else {
		state = 'block';
	}
	
	element.style.display = state;
}


<!--

var stateAKR = 'none';
function showhideAKR(layer_ref) {

if (stateAKR == 'block') 
{stateAKR = 'none';}
else 
{stateAKR = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateAKR")}

if (document.layers) 
{document.layers[layer_ref].display = stateAKR;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateAKR;
}
}
//-->

<!--
var stateYSU = 'none';

function showhideYSU(layer_ref) {

if (stateYSU == 'block') 
{stateYSU = 'none';}
else 
{stateYSU = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateYSU")}

if (document.layers) 
{document.layers[layer_ref].display = stateYSU;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateYSU;
}
}
//-->

<!--

var stateNW = 'none';
function showhideNW(layer_ref) {

if (stateNW == 'block') 
{stateNW = 'none';}
else 
{stateNW = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateNW")}

if (document.layers) 
{document.layers[layer_ref].display = stateNW;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateNW;
}
}
//-->

<!--
var stateUM = 'none';

function showhideUM(layer_ref) {

if (stateUM == 'block') 
{stateUM = 'none';}
else 
{stateUM = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateUM")}

if (document.layers) 
{document.layers[layer_ref].display = stateUM;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateUM;
}
}
//-->

<!--
var stateILL = 'none';

function showhideILL(layer_ref) {

if (stateILL == 'block') 
{stateILL = 'none';}
else 
{stateILL = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateILL")}

if (document.layers) 
{document.layers[layer_ref].display = stateILL;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateILL;
}
}
//-->

<!--

var stateTEM = 'none';
function showhideTEM(layer_ref) {

if (stateTEM == 'block') 
{stateTEM = 'none';}
else 
{stateTEM = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateTEM")}

if (document.layers) 
{document.layers[layer_ref].display = stateTEM;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateTEM;
}
}
//-->

<!--
var stateMSU = 'none';

function showhideMSU(layer_ref) {

if (stateMSU == 'block') 
{stateMSU = 'none';}
else 
{stateMSU = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateMSU")}

if (document.layers) 
{document.layers[layer_ref].display = stateMSU;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateMSU;
}
}
//-->



<!--
var stateRBK = 'none';

function showhideRBK(layer_ref) {

if (stateRBK == 'block') 
{stateRBK = 'none';}
else 
{stateRBK = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateRBK")}

if (document.layers) 
{document.layers[layer_ref].display = stateRBK;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateRBK;
}
}
//-->

<!--
var statePSPep = 'none';

function showhidePSPep(layer_ref) {

if (statePSPep == 'block') 
{statePSPep = 'none';}
else 
{statePSPep = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = statePSPep")}

if (document.layers) 
{document.layers[layer_ref].display = statePSPep;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = statePSPep;
}
}
//-->

<!--
var stateNYE = 'none';

function showhideNYE(layer_ref) {

if (stateNYE == 'block') 
{stateNYE = 'none';}
else 
{stateNYE = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateNYE")}

if (document.layers) 
{document.layers[layer_ref].display = stateNYE;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateNYE;
}
}
//-->



<!--
var stateArchive = 'none';

function showhideArchive(layer_ref) {

if (stateArchive == 'block') 
{stateArchive = 'none';}
else 
{stateArchive = 'block';}

if (document.all) 
{eval( "document.all." + layer_ref + ".style.display = stateArchive")}

if (document.layers) 
{document.layers[layer_ref].display = stateArchive;}

if (document.getElementById &&!document.all) {
hza = document.getElementById(layer_ref);
hza.style.display = stateArchive;
}
}
//-->