var term_parts = new Array('num','a_b','c','d_h','i_o','p_u','v_z');

function termClick( item ) {
	for( key in term_parts) {
		if( term_parts[key] == item ) {
			document.getElementById(term_parts[key]).style.display = '';
		}
		else {
			document.getElementById(term_parts[key]).style.display = 'none';
		}
	}
}