function showCompany() {
	
	if (document.getElementById('company_3').style.display == 'block') {
		document.getElementById('company_4').style.display = "block";
	}
	
	if (document.getElementById('company_2').style.display == 'block') {
		document.getElementById('company_3').style.display = "block";
	}
	
	if (document.getElementById('company_2').style.display == 'none') {
		document.getElementById('company_2').style.display = "block";
	}

	
}