// DateUtil.js
// v1.0
// by, Jeffery Walker
// http://cs.oberlin.edu/~jwalker/

	//document.write("DateUtil.js loaded<br>");

	/*function isLeapYear(year)
	{
		if ((year/4)   != Math.floor(year/4))   return false;
		if ((year/100) != Math.floor(year/100)) return true;
		if ((year/400) != Math.floor(year/400)) return false;
		return true;
	}*/
	
	function isLeapYear(year)
	{
		return year % 4 == 0 && (year % 100 != 0 || year % 400 == 0);
	}
	
	function getDaysInYear(year)
	{
		if(isLeapYear(year))
			return 366;
		else
			return 365;
	}
	
	function formatDatePart(num)
	{
		var v = num.toString();
		return v.length == 1 ? "0"+v : v;
	}