function changediapo(maxImages,categ)
		{
		var leftBande = parseInt($('#bande').css("left").replace('px',''));
		var maxright = 0-((maxImages-1)*666);
		var activeproj = ((0-leftBande)/666)+1;		
		if (leftBande <= (maxright))
			{
			$('#bande').animate({"left": "0px"},"slow");
			if (categ == 'cat')
				{
				newSrc = $('#img1').attr("src").replace('up','down');
				$("#img1").attr("src", newSrc);
				newSrc = $('#img'+(maxImages)).attr("src").replace('down','up');
				$("#img"+(maxImages)).attr("src", newSrc);				
				}
			}
		else 
			{
			$('#bande').animate({"left": "-=666px"},"slow");			
			if (categ == 'cat')
				{
				newSrc = $('#img'+(activeproj+1)).attr("src").replace('up','down');
				$("#img"+(activeproj+1)).attr("src", newSrc);
				newSrc = $('#img'+(activeproj)).attr("src").replace('down','up');
				$("#img"+(activeproj)).attr("src", newSrc);	
				}		
			}
		}

function prec_diapo(maxImages,categ)
		{

		var maxright = 0-((maxImages-1)*666);
		var leftBande = parseInt($('#bande').css("left").replace('px',''));
		var activeproj = ((0-leftBande)/666)+1;				
		if (leftBande < 0)
			{
			$('#bande').animate({"left": "+=666px"},"slow");
			if (categ == 'cat')
				{
				newSrc = $('#img'+(activeproj)).attr("src").replace('down','up');
				$("#img"+(activeproj)).attr("src", newSrc);				
				newSrc = $('#img'+(activeproj-1)).attr("src").replace('up','down');
				$("#img"+(activeproj-1)).attr("src", newSrc);
				}	
			}
		else
			{
			$('#bande').animate({"left": maxright+"px"},"slow");	
			if (categ == 'cat')
				{			
				newSrc = $('#img'+(activeproj)).attr("src").replace('down','up');
				$("#img"+(activeproj)).attr("src", newSrc);				
				newSrc = $('#img'+(maxImages)).attr("src").replace('up','down');
				$("#img"+(maxImages)).attr("src", newSrc);			
				}		
			}
		
		}