/*

	MINUTES LATER FOR DIFF

	Description: When viewing an edit diff, shows how many minutes have passed from the old edit and the new one.

		Only appears if the difference is less than an hour.

*/



function convertTimestampStringToDate(id)

{

	var timestamp = $('#' + id).children().first().children().first().text();

	timestamp = timestamp.substring('Revision as of '.length).match(/(\d\d):(\d\d), (\d{1,2}) ([A-Z][a-z]+) (\d{4})/);

	return new Date(timestamp4 + ' ' + timestamp3 + ', ' + timestamp5 + ' ' + timestamp1 + ':' + timestamp2 + ':00');

}



function minutesLaterForDiff()

{

	if (!$('#mw-diff-otitle1').length || !$('#mw-diff-ntitle1').length) return false;



	var leftNode = $('#mw-diff-otitle1');;

	var rightNode = $('#mw-diff-ntitle1');

	var firstDate = convertTimestampStringToDate('mw-diff-otitle1');

	var secondDate = convertTimestampStringToDate('mw-diff-ntitle1');



	var timeDifference = secondDate.getTime() - firstDate.getTime();

	var minutesAgo = Math.round(timeDifference / 1000 / 60);



	if (minutesAgo >= 60) return false;

	else if (minutesAgo < 1) minutesAgo = 'Less than a minute later';

	else if (minutesAgo == 1) minutesAgo = 'One minute later';

	else minutesAgo = minutesAgo + ' minutes later';



	leftNode.prepend($('<span>&nbsp;</span><br />'));

	rightNode.prepend($('<span></span>').append(minutesAgo).append('<br />'));

}



$(minutesLaterForDiff);