var rotate_comm = 
{
	// global vars
	image_url: new Array(),
	arrayLength: null,
	
	changeImage: function(type)
	{
		// fade image out
		$('#comm_currentImage').animate({opacity: 0.1}, 'fast', function()
		{
			var thisNum = parseInt($('#comm_currentImage').attr('alt').replace(/Featured Project /g,''));
			var newImageId = 0;
			
			if(type == 'prev')
			{
				// determine next image
				newImageId = (thisNum > 0) ? (thisNum-1) : rotate_comm.arrayLength;				
			}
			else
			{
				// determine next image
				newImageId = (thisNum < rotate_comm.arrayLength) ? (thisNum+1) : 0;				
			}
			
			// force image to load
			var nextImage = new Image(); 
			nextImage.src = rotate_comm.image_url[newImageId][0];

			if(nextImage.complete)
			{
				// fade new image in
				$('#comm_currentImage').attr('src', rotate_comm.image_url[newImageId][0]).attr('alt', ''+newImageId);
				$('#comm_currentImage').animate({opacity: 1}, 'fast');
								
			}
			else
			{
				nextImage.onload = function()
				{
					$('#comm_currentImage').attr('src',rotate_comm.image_url[newImageId][0]).attr('alt', ''+newImageId);
					$('#comm_currentImage').animate({opacity: 1}, 'fast');
				}								
			}						
		});		
	},

	init: function()
	{		                                                                                          
		rotate_comm.image_url[0] = new Array('/img/culture_highlights/community_support/RT_7.jpg');
		rotate_comm.image_url[1] = new Array('/img/culture_highlights/community_support/RT_10.jpg');
		rotate_comm.image_url[2] = new Array('/img/culture_highlights/community_support/RT_20.jpg');
		rotate_comm.image_url[3] = new Array('/img/culture_highlights/community_support/RT_25.jpg');
		rotate_comm.image_url[4] = new Array('/img/culture_highlights/community_support/RT_29.jpg');
		rotate_comm.image_url[5] = new Array('/img/culture_highlights/community_support/RT_30.jpg');
		rotate_comm.image_url[6] = new Array('/img/culture_highlights/community_support/RT_33.jpg');
		rotate_comm.image_url[7] = new Array('/img/culture_highlights/community_support/RT_38.jpg');
		rotate_comm.image_url[8] = new Array('/img/culture_highlights/community_support/RT_44.jpg');
		rotate_comm.image_url[9] = new Array('/img/culture_highlights/community_support/RT_55.jpg');
		rotate_comm.image_url[10] = new Array('/img/culture_highlights/community_support/RT_68.jpg');
		rotate_comm.image_url[11] = new Array('/img/culture_highlights/community_support/RT_69.jpg');
		rotate_comm.image_url[12] = new Array('/img/culture_highlights/community_support/RT_70.jpg');
		rotate_comm.image_url[13] = new Array('/img/culture_highlights/community_support/RT_71.jpg');
		rotate_comm.image_url[14] = new Array('/img/culture_highlights/community_support/RT_72.jpg');
		rotate_comm.image_url[15] = new Array('/img/culture_highlights/community_support/RT_73.jpg');
		rotate_comm.image_url[16] = new Array('/img/culture_highlights/community_support/TDC_1_.jpg');
		rotate_comm.image_url[17] = new Array('/img/culture_highlights/community_support/TDC_6.jpg');
		rotate_comm.image_url[18] = new Array('/img/culture_highlights/community_support/TDC_11.jpg');
		rotate_comm.image_url[19] = new Array('/img/culture_highlights/community_support/TDC_13.jpg');
		rotate_comm.image_url[20] = new Array('/img/culture_highlights/community_support/TDC_14.jpg');
		rotate_comm.image_url[21] = new Array('/img/culture_highlights/community_support/TDC_15.jpg');
		rotate_comm.image_url[22] = new Array('/img/culture_highlights/community_support/TDC_16.jpg');
		
		rotate_comm.arrayLength = rotate_comm.image_url.length;
		rotate_comm.arrayLength -= 1;
		$('#hlPreviousComm').bind('click', function() { rotate_comm.changeImage('prev'); });
		$('#hlNextComm').bind('click', function() { rotate_comm.changeImage('next'); });
	}
}