$(function(){
	
	var morePosition = 0;
	var moreLimit = $("#content p").size();
	
	var dataIni = $("#content p:eq(0)").html();
	 
	$("button.more.next").click(next);
	
	$("button.more.prev").click(prev);
	
	$(document).keydown(function(e)
		{	
			//console.log(e.keyCode);
			
			switch(e.keyCode)
			{
				case 39: next();
				break;
				
				case 37: prev();
				break;
				
				case 70: foursquare();
			}
	});
		
	
	function next(){
		morePosition = (morePosition+1 == moreLimit) ? 0 : morePosition+1;
		
		if(morePosition == 0){
			$("#content p:eq(0)").html(dataIni);
		}
		else{
			var data = $("#content p:eq("+morePosition+")").html();
			$("#content p:eq(0)").html(data);
		}
	}
	
	
	function prev(){
		morePosition = (morePosition-1 == -1) ? moreLimit-1 : morePosition-1;
		
		if(morePosition == 0){
			$("#content p:eq(0)").html(dataIni);
		}
		else{
			var data = $("#content p:eq("+morePosition+")").html();
			$("#content p:eq(0)").html(data);
		}
	}
	
	function foursquare(){
		
		if($("p").hasClass("foursquare")){
		
			morePosition = 3;

			var data = $("#content p:eq("+morePosition+")").html();
			$("#content p:eq(0)").html(data);
		};
	}
		
		
});