var popupStatus = 0;

		function loadPopup(){
			if(popupStatus==0){
				$("#video-background").css({"opacity": "0.8"});
				$("#video-background").fadeIn("slow");
				$("#video-box").fadeIn("slow");
				popupStatus = 1;
			}
		}

		function disablePopup(){
			if(popupStatus==1){
				$("#video-background").fadeOut("slow");
				$("#video-box").fadeOut("slow");
				popupStatus = 0;
			}
		}
		
		function centerPopup(){  
			var windowWidth = document.documentElement.clientWidth;  
			var windowHeight = document.documentElement.clientHeight;  
			var popupHeight = $("#video-box").height();  
			var popupWidth = $("#video-box").width();  
			$("#video-box").css({"position": "absolute","top": "50px","left": windowWidth/2-popupWidth/2});  
			$("#video-background").css({"height": windowHeight});  
  
		}  

		$(document).ready(function(){
			$(".site-single:even").addClass("even");
		});

  		$("#video-launch").click(function(){
  			centerPopup();
			loadPopup();
			introduction.play();
		});

		$("#video-close").click(function(){
			disablePopup();
			introduction.pause();
		});

		$("#video-background").click(function(){
			disablePopup();
			introduction.pause();
		});

		var menustatus = 0;

		function loadMenu(){
			if(menustatus==0){
				$("#categories").css({"display": "inline-block"});
				menustatus = 1;
			}
		}

		function closeMenu(){
			if(menustatus==1){
				$("#categories").css({"display": "none"});
				menustatus = 0;
			}
		}
		
		$(document).ready(function(){});

  		$(".select").click(function(){
  			if(menustatus==0){
  				loadMenu();
  			}
  			else {
  				closeMenu();
  			}
		});