var active ='layer1';
function setVisibility(id, visibility) {
document.getElementById(id).style.display = visibility;
}
function ShowLayer(id) {
if (document.all) { document.all[active].style.visibility = "hidden"; }
if(document.layers){ document.layers[active].visibility = "hide";}
if(document.getElementById) {document.getElementById(active).style.visibility='hidden';}
active = id;
if (document.all) { document.all[active].style.visibility = "visible"; }
if(document.layers) { document.layers[active].visibility = "show" ;}
if(document.getElementById) {document.getElementById(active).style.visibility='visible';}
}
function showMenu_1(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_1.visibility=visi;}
 if(document.all){document.all.menu_1.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_1").style.visibility=visi;}
} 
function showMenu_2(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_2.visibility=visi;}
 if(document.all){document.all.menu_2.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_2").style.visibility=visi;}
} 
function showMenu_3(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_3.visibility=visi;}
 if(document.all){document.all.menu_3.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_3").style.visibility=visi;}
} 
function showMenu_4(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_4.visibility=visi;}
 if(document.all){document.all.menu_4.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_4").style.visibility=visi;}
} 
function showMenu_5(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_5.visibility=visi;}
 if(document.all){document.all.menu_5.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_5").style.visibility=visi;}
} 
function showMenu_1(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_1.visibility=visi;}
 if(document.all){document.all.menu_1.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_1").style.visibility=visi;}
} 
function showMenu_2(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_2.visibility=visi;}
 if(document.all){document.all.menu_2.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_2").style.visibility=visi;}
} 
function showMenu_3(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_3.visibility=visi;}
 if(document.all){document.all.menu_3.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_3").style.visibility=visi;}
} 
function showMenu_4(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_4.visibility=visi;}
 if(document.all){document.all.menu_4.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_4").style.visibility=visi;}
} 
function showMenu_5(f){
 if(f){visi="visible";}
 else{visi="hidden";}
 if(document.layers){document.menu_5.visibility=visi;}
 if(document.all){document.all.menu_5.style.visibility=visi;}
 if(document.getElementById){document.getElementById("menu_5").style.visibility=visi;}
}