Web Development with jQuery®

Filtering a Selection (^) ❘ 49
'calendarEarlierThisWeek ' +
'calendarLaterThisWeek ' +
'calendarThisWeek'
);
var yesterday = today.prev('td');
// If today occurs at the beginning of the week, look in the
// preceding row for yesterday.
if (!yesterday.length)
{
var lastWeek = today.parent('tr').prev('tr');
if (lastWeek.length)
{
yesterday = lastWeek.children('td').eq(6);
}
}
// If today occurs in the first cell of the first row of the
// calendar, yesterday won't be present in this month.
if (yesterday.length)
{
yesterday.addClass('calendarYesterday');
}
var tomorrow = today.next('td');
// If today occurs at the end of the week, look in the
// proceeding row for tommorrow.
if (!tomorrow.length)
{
var nextWeek = today.parent('tr').next('tr');
if (nextWeek.length)
{
tomorrow = nextWeek.children('td').eq(0);
}
}
// If today occurs in the last cell of the last row of
// the calendar, tomorrow won't be present in this month.
if (tomorrow.length)
{
tomorrow.addClass('calendarTommorow');
}
var laterThisWeek = today.nextAll('td');
if (laterThisWeek.length)
{
laterThisWeek.addClass('calendarLaterThisWeek');
}
var earlierThisWeek = today.prevAll('td');
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