$(function(){
	$('a#prevslide').click(function() {
		currentPos = parseInt($('.portfolio_slider').css('left'));
		if (currentPos%1200 == 0)
		{
			newPos = currentPos;
			
			
			last = $('.portfolio_slider .portfolio_item').last().detach();
			$(last).prependTo('.portfolio_slider');
			endpos = ''+(currentPos-1200)+'px';
			$('.portfolio_slider').css('left', endpos);
			
			$('.portfolio_slider').animate({'left':newPos}, 600);
			$('.portfolio_slider .active').fadeTo(600, 0.3);
			
			nextCurrent = $('.portfolio_slider .active').prev();
			$('.portfolio_slider .active').removeClass('active');
			$(nextCurrent).fadeTo(600, 1.0);
			$(nextCurrent).addClass('active');
			$('.portfolio_slider').height($('.portfolio_slider').height()+1);
			$('.portfolio_slider').height($('.portfolio_slider').height()-1);
			return false;
			
		}
	});
	
	$('a#nextslide').click(function() {
		currentPos = parseInt($('.portfolio_slider').css('left'));
		
		if (currentPos%1200 == 0)
		{
			newPos = currentPos;
			
			
			last = $('.portfolio_slider .portfolio_item').first().detach();
			$(last).appendTo('.portfolio_slider');
			endpos = ''+(currentPos+1200)+'px';
			$('.portfolio_slider').css('left', endpos);
			$('.portfolio_slider').animate({'left':newPos}, 600);
			$('.portfolio_slider .active').fadeTo(600, 0.3);
			
			nextCurrent = $('.portfolio_slider .active').next();
			$('.portfolio_slider .active').removeClass('active');
			$(nextCurrent).fadeTo(600, 1.0);
			$(nextCurrent).addClass('active');
			$('.portfolio_slider').height($('.portfolio_slider').height()+1);
			$('.portfolio_slider').height($('.portfolio_slider').height()-1);
			return false;
			
		}
	});
});