前月と次月の日付表示

<script src="js/jquery.js"></script>
<script src="js/jquery-ui.js"></script>
<script>
$(function() {
	$('#from').datepicker({
		showOtherMonths: true
	});
});
</script>
<input id="from" type="text">

今日より前の日を選択不可

<script src="js/jquery.js"></script>
<script src="js/jquery-ui.js"></script>
<script>
$(function() {
	$('#from').datepicker({
		showOtherMonths: true,
		minDate: 0
	});
});
</script>
<input id="from" type="text">

曜日のテキストを変更

<script src="js/jquery.js"></script>
<script src="js/jquery-ui.js"></script>
<script>
$(function() {
	$('#from').datepicker({
		showOtherMonths: true,
		minDate: 0,
		dayNamesMin:['S','M','T','W','T','F','S']
	});
});
</script>
<input id="from" type="text">