$(function(){
	var current = 1;
	var next = 2;
	
	var autoSlider = setTimeout(function(){ 
		doSlider();
	}, 6500)
	
	function doSlider() { 
		next = (current + 1 > 3 ? 1 : current+1); 
		$(".next").removeClass("next").addClass("past");    
		$("#slider_buttons a").removeClass("current");
		$("#slider_" + next).addClass("current");  
		
		// z-index    
		$("#slider_content_" + next).addClass("next").removeClass("past");
		
		$("#slider_content_" + next).fadeIn(500, function(){ 
			clearInterval(autoSlider);
			autoSlider = setTimeout(function(){ 
				doSlider();
			}, 6500); 
			$("#slider_content_" + current).hide(); 
			current = next; 
		})		
	}
	
	$("#slider_buttons a").click(function(){
		var elementCounter = $(this).attr("id").replace("slider_",""); 
		clearInterval(autoSlider); 
		current = (elementCounter == 1 ? 3 : elementCounter - 1); 
		doSlider();
	})
})