flymis/WebRoot/dojojs/src/date/common.js

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/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.date.common");


/* Supplementary Date Functions
 *******************************/

dojo.date.setDayOfYear = function(/*Date*/dateObject, /*Number*/dayOfYear){
	// summary: sets dateObject according to day of the year (1..366)
	dateObject.setMonth(0);
	dateObject.setDate(dayOfYear);
	return dateObject; // Date
}

dojo.date.getDayOfYear = function(/*Date*/dateObject){
	// summary: gets the day of the year as represented by dateObject
	var fullYear = dateObject.getFullYear();
	var lastDayOfPrevYear = new Date(fullYear-1, 11, 31);
	return Math.floor((dateObject.getTime() -
		lastDayOfPrevYear.getTime()) / 86400000); // Number
}


dojo.date.setWeekOfYear = function(/*Date*/dateObject, /*Number*/week, /*Number*/firstDay){
	if(arguments.length == 1){ firstDay = 0; } // Sunday
	dojo.unimplemented("dojo.date.setWeekOfYear");
}

dojo.date.getWeekOfYear = function(/*Date*/dateObject, /*Number*/firstDay){
	if(arguments.length == 1){ firstDay = 0; } // Sunday

	// work out the first day of the year corresponding to the week
	var firstDayOfYear = new Date(dateObject.getFullYear(), 0, 1);
	var day = firstDayOfYear.getDay();
	firstDayOfYear.setDate(firstDayOfYear.getDate() -
			day + firstDay - (day > firstDay ? 7 : 0));

	return Math.floor((dateObject.getTime() -
		firstDayOfYear.getTime()) / 604800000);
}

dojo.date.setIsoWeekOfYear = function(/*Date*/dateObject, /*Number*/week, /*Number*/firstDay){
	// summary: unimplemented
	if (arguments.length == 1) { firstDay = 1; } // Monday
	dojo.unimplemented("dojo.date.setIsoWeekOfYear");
}

dojo.date.getIsoWeekOfYear = function(/*Date*/dateObject, /*Number*/firstDay) {
	// summary: unimplemented
	if (arguments.length == 1) { firstDay = 1; } // Monday
	dojo.unimplemented("dojo.date.getIsoWeekOfYear");