function hide_nav() {
		document.getElementById('admissions_nav').style.display = 'none';
		document.getElementById('welcome_nav').style.display = 'none';
		document.getElementById('welcome_nav_arrow').style.display = 'none';
		document.getElementById('admissions_nav_arrow').style.display = 'none';
		document.getElementById('ourprograms_nav').style.display = 'none';
		document.getElementById('parents_nav').style.display = 'none';
		document.getElementById('ourprograms_nav_arrow').style.display = 'none';
		document.getElementById('parents_nav_arrow').style.display = 'none';
		document.getElementById('alumni_nav_arrow').style.display = 'none';
		document.getElementById('alumni_nav').style.display = 'none';
		}
		
	function show_welcome_nav() {
		if (document.getElementById('welcome_nav').style.display == 'block') {
			hide_nav();
			
			
			} else {
			
				document.getElementById('ourprograms_nav').style.display = 'none';
				document.getElementById('parents_nav').style.display = 'none';
				document.getElementById('ourprograms_nav_arrow').style.display = 'none';
				document.getElementById('parents_nav_arrow').style.display = 'none';
				document.getElementById('alumni_nav_arrow').style.display = 'none';
				document.getElementById('alumni_nav').style.display = 'none';
				document.getElementById('admissions_nav').style.display = 'none';
		
				document.getElementById('welcome_nav').style.display = 'block';	
				
				document.getElementById('welcome_nav_arrow').style.display = 'block';	
				document.getElementById('admissions_nav_arrow').style.display = 'none';
			}
		}
		
	function show_admissions_nav() {
		if (document.getElementById('admissions_nav').style.display == 'block') {
			hide_nav();
			
			
			} else {
				
				document.getElementById('ourprograms_nav').style.display = 'none';
				document.getElementById('parents_nav').style.display = 'none';
				document.getElementById('ourprograms_nav_arrow').style.display = 'none';
				document.getElementById('parents_nav_arrow').style.display = 'none';
				document.getElementById('alumni_nav_arrow').style.display = 'none';
				document.getElementById('alumni_nav').style.display = 'none';
				document.getElementById('welcome_nav').style.display = 'none';
		
				document.getElementById('admissions_nav').style.display = 'block';
				
				document.getElementById('admissions_nav_arrow').style.display = 'block';
				document.getElementById('welcome_nav_arrow').style.display = 'none';	
				
				}
		}

	function show_alumni_nav() {
		if (document.getElementById('alumni_nav').style.display == 'block') {
			hide_nav();
			
			
			} else {
				document.getElementById('welcome_nav').style.display = 'none';
				document.getElementById('admissions_nav').style.display = 'none';
				document.getElementById('ourprograms_nav').style.display = 'none';
				document.getElementById('parents_nav').style.display = 'none';
				document.getElementById('welcome_nav_arrow').style.display = 'none';
				document.getElementById('admissions_nav_arrow').style.display = 'none';
				document.getElementById('ourprograms_nav_arrow').style.display = 'none';
				document.getElementById('parents_nav_arrow').style.display = 'none';
				document.getElementById('alumni_nav_arrow').style.display = 'block';
				document.getElementById('alumni_nav').style.display = 'block';
				}

		}
		
	function show_parents_nav() {
		
		if (document.getElementById('parents_nav').style.display == 'block') {
			hide_nav();
					
					
			} else {
				document.getElementById('welcome_nav').style.display = 'none';
				document.getElementById('admissions_nav').style.display = 'none';
				document.getElementById('ourprograms_nav').style.display = 'none';
				document.getElementById('parents_nav').style.display = 'block';
				document.getElementById('welcome_nav_arrow').style.display = 'none';
				document.getElementById('admissions_nav_arrow').style.display = 'none';
				document.getElementById('ourprograms_nav_arrow').style.display = 'none';
				document.getElementById('parents_nav_arrow').style.display = 'block';
				document.getElementById('alumni_nav_arrow').style.display = 'none';
				document.getElementById('alumni_nav').style.display = 'none';
				}
		}
	
	function show_ourprograms_nav() {
		if (document.getElementById('ourprograms_nav').style.display == 'block') {
				hide_nav();
				
				
				} else {
					document.getElementById('welcome_nav').style.display = 'none';
					document.getElementById('admissions_nav').style.display = 'none';
					document.getElementById('ourprograms_nav').style.display = 'block';
					document.getElementById('parents_nav').style.display = 'none';
					document.getElementById('welcome_nav_arrow').style.display = 'none';
					document.getElementById('admissions_nav_arrow').style.display = 'none';
					document.getElementById('ourprograms_nav_arrow').style.display = 'block';
					document.getElementById('parents_nav_arrow').style.display = 'none';
					document.getElementById('alumni_nav_arrow').style.display = 'none';
					document.getElementById('alumni_nav').style.display = 'none';
					}
		}