shours[hour] = (typeof(shours[hour]) == 'undefined') ? {} : shours[hour];
shours[hour][line.desc] = (typeof(shours[hour][line.desc] ) == 'undefined') ? 0 : shours[hour][line.desc] ;
shours[hour][line.desc] += line.span;
shours[hour] = (typeof(shours[hour]) == 'undefined') ? {} : shours[hour];
shours[hour][line.desc] = (typeof(shours[hour][line.desc] ) == 'undefined') ? 0 : shours[hour][line.desc] ;
shours[hour][line.desc] += line.span;