$(document).ready(function(){
	var $myInterval;
	var $myIntervalSpeed = 4000;
		
	$myInterval = setInterval("ahSwitchImage()",$myIntervalSpeed);
	$('#ah').mouseover(function(){
		clearInterval($myInterval);
	});
	$('#ah').mouseout(function(){
		$myInterval = setInterval("ahSwitchImage()",$myIntervalSpeed);
	});	
});

function ahSwitchImage(){
		$imageVisible = $('.ah_image:visible');
		$nextImageHidden = $imageVisible.next('.ah_image:hidden');
		
		if($nextImageHidden.length < 1){
			$nextImageHidden = $('.ah_image').filter(':first');
		}
		//console.log($nextImageHidden);
		$('.ah_auto_active').removeClass('ah_auto_active');
		if($nextImageHidden.hasClass('ah_image_first')){			
			$('.ah_box_first').find('.ah_main_link').addClass('ah_auto_active');
		}
		else if($nextImageHidden.hasClass('ah_image_second')){			
			$('.ah_box_second').find('.ah_main_link').addClass('ah_auto_active');
		}
		else if($nextImageHidden.hasClass('ah_image_third')){			
			$('.ah_box_third').find('.ah_main_link').addClass('ah_auto_active');
		}
		else if($nextImageHidden.hasClass('ah_image_fourth')){			
			$('.ah_box_fourth').find('.ah_main_link').addClass('ah_auto_active');
		}
				
		$nextImageHidden.show("fade",{},1000);
		$imageVisible.hide("fade",{},1000);					
}