// JavaScript Document

function changeLayer(whichLayer)
{
if (document.getElementById)
{
// this is the way the standards work
	if (whichLayer == "program_body") {
		document.getElementById('program_body').style.display = "block" ;
		document.getElementById('archive').style.display = "none" ;
		var staff_exists = eval(document.getElementById('staff'));
		if(staff_exists) {
		document.getElementById('staff').style.display = "none" ;
		}
		var saint_days_exist = eval(document.getElementById('saint_days'));
		if(saint_days_exist) {
		document.getElementById('saint_days').style.display = "none" ;
		}
	}
	else if (whichLayer == "archive") {
		document.getElementById('program_body').style.display = "none" ;
		document.getElementById('archive').style.display = "block" ;
		var staff_exists = eval(document.getElementById('staff'));
		if(staff_exists) {
		document.getElementById('staff').style.display = "none" ;
		}
		var saint_days_exist = eval(document.getElementById('saint_days'));
		if(saint_days_exist) {
		document.getElementById('saint_days').style.display = "none" ;
		}
		} 
	else if (whichLayer == "staff") {
		document.getElementById('program_body').style.display = "none" ;
		document.getElementById('archive').style.display = "none" ;

		var staff_exists = eval(document.getElementById('staff'));
		if(staff_exists) {
		document.getElementById('staff').style.display = "block" ;
		}
		
		var saint_days_exist = eval(document.getElementById('saint_days'));
		if(saint_days_exist) {
		document.getElementById('saint_days').style.display = "none" ;
		}
		} 
	else if (whichLayer == "saint_days") {
		document.getElementById('program_body').style.display = "none" ;
		document.getElementById('archive').style.display = "none" ;
		var staff_exists = eval(document.getElementById('staff'));
		if(staff_exists) {
		document.getElementById('staff').style.display = "none" ;
		}
		var saint_days_exist = eval(document.getElementById('saint_days'));
		if(saint_days_exist) {
		document.getElementById('saint_days').style.display = "block" ;
		}
		} 
}
else if (document.all)
{
// this is the way old msie versions work
if (whichLayer == 'program_body') {
		document.all('program_body').style.display = "block" ;
		document.all('archive').style.display = "none" ;
		var staff_exists = eval(document.all('staff'));
		if(staff_exists) {
		document.all('staff').style.display = "none" ;
			}
		var saint_days_exist = eval(document.all('saint_days'));
		if(saint_days_exist) {
		document.all('saint_days').style.display = "none" ;
			}
		}
	else if (whichLayer == 'archive') {
		document.all('program_body').style.display = "none" ;
		document.all('archive').style.display = "block" ;
		var staff_exists = eval(document.all('staff'));
		if(staff_exists) {
		document.all('staff').style.display = "none" ;
			}
		var saint_days_exist = eval(document.all('saint_days'));
		if(saint_days_exist) {
		document.all('saint_days').style.display = "none" ;
			}
		} 
	else if (whichLayer == 'staff') {
		document.all('program_body').style.display = "none" ;
		document.all('archive').style.display = "none" ;
		var staff_exists = eval(document.all('staff'));
		if(staff_exists) {
		document.all('staff').style.display = "block" ;
			}
		var saint_days_exist = eval(document.all('saint_days'));
		if(saint_days_exist) {
		document.all('saint_days').style.display = "none" ;
			}
		}
	else if (whichLayer == 'saint_days') {
		document.all('program_body').style.display = "none" ;
		document.all('archive').style.display = "none" ;
		var staff_exists = eval(document.all('staff'));
		if(staff_exists) {
		document.all('staff').style.display = "none" ;
			}
		var saint_days_exist = eval(document.all('saint_days'));
		if(saint_days_exist) {
		document.all('saint_days').style.display = "block" ;
			}
		} 
}
else if (document.layers)
{
// this is the way nn4 works
if (whichLayer == 'program_body') {
		document.layers['program_body'].style.display = "block" ;
		document.layers['archive'].style.display = "none" ;
		var staff_exists = eval(document.layers['staff']);
		if(staff_exists) {
		document.layers['staff'].style.display = "none" ;
			}
		var saint_days_exist = eval(document.layers['saint_days']);
		if(saint_days_exist) {
		document.layers['saint_days'].style.display = "none" ;
			}
		}
	else if (whichLayer == 'archive') {
		document.layers['program_body'].style.display = "none" ;
		document.layers['archive'].style.display = "block" ;
		var staff_exists = eval(document.layers['staff']);
		if(staff_exists) {
		document.layers['staff'].style.display = "none" ;
			}
		var saint_days_exist = eval(document.layers['saint_days']);
		if(saint_days_exist) {
		document.layers['saint_days'].style.display = "none" ;
			}
		} 
	else if (whichLayer == 'staff') {
		document.layers['program_body'].style.display = "none" ;
		document.layers['archive'].style.display = "none" ;
		var staff_exists = eval(document.layers['staff']);
		if(staff_exists) {
		document.layers['staff'].style.display = "block" ;
			}
		var saint_days_exist = eval(document.layers['saint_days']);
		if(saint_days_exist) {
		document.layers['saint_days'].style.display = "none" ;
			}
		} 
	else if (whichLayer == 'saint_days') {
		document.layers['program_body'].style.display = "none" ;
		document.layers['archive'].style.display = "none" ;
		var staff_exists = eval(document.layers['staff']);
		if(staff_exists) {
		document.layers['staff'].style.display = "none" ;
			}
		var saint_days_exist = eval(document.layers['saint_days']);
		if(saint_days_exist) {
		document.layers['saint_days'].style.display = "block" ;
			}
		} 
}
}

function changeVisibility(whichLayer)
{
if (document.getElementById)
{

// this is the way the standards work
	if (document.getElementById(whichLayer).style.display == "block" ) {
		document.getElementById(whichLayer).style.display = "none" ;
	}
	else if (document.getElementById(whichLayer).style.display == "none") {
		document.getElementById(whichLayer).style.display = "block" ;
		} 
}
else if (document.all)
{
// this is the way old msie versions work
	if (document.all(whichLayer).style.display == "block") {
		document.all(whichLayer).style.display = "none" ;
		}
	else if (document.all(whichLayer).style.display == "none") {
		document.all(whichLayer).style.display = "block" ;
		} 
}
else if (document.layers)
{
// this is the way nn4 works
if (document.layers[whichLayer].style.display == "block") {
		document.layers[whichLayer].style.display = "none" ;
		}
	else if (document.layers[whichLayer].style.display== "none") {
		document.layers[whichLayer].style.display = "block";
		} 
}
}

function hide()
{
if (document.getElementById)
{
		var staff_exists = eval(document.getElementById('creative_council'));
		if(staff_exists){
		document.getElementById('creative_council').style.display = "none" ;
		document.getElementById('programming_division').style.display = "none" ;
		document.getElementById('foreign_relations').style.display = "none" ;
		document.getElementById('computer_animation').style.display = "none" ;
		document.getElementById('children_programs').style.display = "none" ;
		document.getElementById('informational_programs').style.display = "none" ;
		document.getElementById('series_programming').style.display = "none" ;
		document.getElementById('cameramen').style.display = "none" ;
		document.getElementById('technical_support').style.display = "none" ;
		}
}
else if (document.all)
{
// this is the way old msie versions work
	
}
else if (document.layers)
{
// this is the way nn4 works
 
}
}