function show_details (id) {
	
	var event_details = document.getElementById(id + '_details');
	var event_title	= document.getElementById(id);
	
	if (event_details.style.display == '') {
		
		event_details.style.display = 'none';
		event_title.className = 'title_over';
		
	} else {
		
		event_details.style.display = '';
		event_title.className = 'title_up';
	}
	
}

function event_over(id) {

	var event_details = document.getElementById(id + '_details');
	var event_title	= document.getElementById(id);
						
	if (event_title.className == 'title_up' && event_details.style.display == 'none') {
		
		event_title.className = 'title_over';
		
	} else if (event_title.className == 'title_over' && event_details.style.display == 'none') {
		
		event_title.className = 'title_up';
	
	} else {
		
		event_title.className = 'title_over';
	}

}