function display(divid){
	if(divid == 'Konstruktion'){
		showSingle(0);
	}
	if(divid == 'Technologien'){
		showSingle(1);
	}
	if(divid == 'Baugruppenfertigung'){
		showSingle(0);
	}
	if(divid == 'Referenzen'){
		showSingle(2);
	}
	if(divid == 'Unternehmen'){
		showSingle(3);
	}
	if(divid == 'Kontakt'){
		showSingle(4);
	}
	if(divid == 'Construction'){
		showSingle(0);
	}
	if(divid == 'Technologies'){
		showSingle(1);
	}
	if(divid == 'Component group manufacturing'){
		showSingle(0);
	}
	if(divid == 'References'){
		showSingle(2);
	}
	if(divid == 'Company'){
		showSingle(3);
	}
	if(divid == 'Contact'){
		showSingle(4);
	}
}

function showSingle(id) {
	for(i = 1;i < 5; i++) {
		document.getElementById('submenu'+i).style.display = 'none';
	}
	if(id != 0) {
		document.getElementById('submenu'+id).style.display = 'block';
	}
}

function show(pid){
	if(pid == 'index'){
		showSingle(0);
	}
	if(pid == 'konstruktion'){
		showSingle(0);
	}
	if(pid == 'technologien'){
		showSingle(1);
	}
	if(pid == 'baugruppenfertigung'){
		showSingle(0);
	}
	if(pid == 'referenzen'){
		showSingle(2);
	}
	if(pid == 'unternehmen'){
		showSingle(3);
	}
	if(pid == 'kontakt'){
		showSingle(4);
	}
}