var prevGradYearSet = 0, disableLinks = false;
function getStats(year)
{
	if ( year != prevGradYearSet )
	{
		$('gradYearStats').update( "<img src='" + imgAjax.src + "' title='loading...please wait'><strong>Loading....</strong>" );
		
		if (!disableLinks)
		{
			var ajax = new Ajax.Request('/Site_Content/gradYearStats.asp',
				{
					method: 'get',
					parameters: {
						ran : Math.random(),
						grad_year : year
					},
		
					onSuccess: dlOutputContent,
					onFailure: dlOutputContentError
				}
			);
			
			prevGradYearSet = year;
			disableLinks = true;
		}
	}
	
	function dlOutputContent(transport)
	{		
		$('gradYearStats').hide();		
		$('gradYearStats').update( transport.responseText );
			
		Effect.toggle('gradYearStats', 'appear',
			{
				duration: 1.4
			}
		);
		
		disableLinks = false;
	}
	
	function dlOutputContentError(transport)
	{
		$(sDiv).update('Error!');
	}
}