function changetab_grey(id) {

	tab_id = "tab_" + id;
	content_id = "tabbox_inner_" + id;
	
	document.getElementById("tab_cassa").className = 'tab2';
	document.getElementById("tab_contratti").className = 'tab2';
	
	document.getElementById(tab_id).className = 'tab1 active';
	
	document.getElementById("tabbox_inner_cassa").style.display = 'none';
	document.getElementById("tabbox_inner_contratti").style.display = 'none';
	
	document.getElementById(content_id).style.display = 'block';
	
}

function changetab_green(id) {

	tab_id = "tab_" + id;
	content_id = "tabbox_inner_" + id;
	
	document.getElementById("tab_scadenze").className = 'tab2';
	document.getElementById("tab_credito").className = 'tab2';
	
	document.getElementById(tab_id).className = 'tab1 active';
	
	
	document.getElementById("tabbox_inner_scadenze").style.display = 'none';
	document.getElementById("tabbox_inner_credito").style.display = 'none';
	
	document.getElementById(content_id).style.display = 'block';
}