function showtab(which) {
	activetab(which);
	activepanel(which);
}




function activetab(which) {
	alltabs_off();
	idref = "n_" + which;
	if (document.getElementById(idref)) { document.getElementById(idref).className = 'active'; }

	

}

function activepanel(which) {
	allpanels_off();
	if (document.getElementById(which)) { document.getElementById(which).style.display = 'block'; }

}

function alltabs_off() {
	if (document.getElementById('n_photographers')) { document.getElementById('n_photographers').className = 'off'; }
	if (document.getElementById('n_agencies')) { document.getElementById('n_agencies').className = 'off'; }
	if (document.getElementById('n_brands')) { document.getElementById('n_brands').className = 'off'; }
}



function allpanels_off() {

	if (document.getElementById('photographers')) { document.getElementById('photographers').style.display = 'none'; }
	if (document.getElementById('agencies')) { document.getElementById('agencies').style.display = 'none'; }
	if (document.getElementById('brands')) { document.getElementById('brands').style.display = 'none'; }
}