JQuery select by inner text

Question

I am doing a project with fullcalendar and I need to be able to select an element based on the day number. Here is a sample of the element I need to select:

Answer 1

$("div.fc-day-number").each(function (){
    if($(this).text()==day)
    {
        $(this).css({ 'background-color': 'Green' });
    }
});