function send_info_request() {
	$('preloader').show();
	new Ajax.Request( '/index/send-chapter-info-request/format/json' , {
		method:'post',
		parameters: { mesaj: $('mesaj').value, 
					  nume: $('nume').value, 
					  telefon: $('telefon').value, 
					  email: $('email').value, 
					  code: $('code').value,
					  subchapter: $('subchapter').value,
					  menu_id: $('menu_id').value
					   },
		onSuccess: function(transport) {
			response = transport.responseJSON.response;
			$('center_right').style.display='block';
			if( response.ok ) {
				$('center_right').innerHTML = 'S-a trimis cu succes!';
			}
			else {
				$('preloader').innerHTML = 'Eroare!<br/>';
				
				if(response.errorString){
					$('preloader').innerHTML += response.errorString;
					var currentTime = new Date();
					$('code_container').src = '/images/cod.png?' + currentTime.getTime();
				}
			}
			
		  },
		 onFailure: function(){
		 	window.location='/';
		 }
		 
		 });
}

function clean_field(field,default_value){
	if(field.value == default_value){
		field.value = "";
	}
}

function restore_field(field,default_value){
	if(!field.value){
		field.value=default_value;
	}
}