var divid;
var menuid;
var appetisersh;
var maincourseh;
var riceh;
var setmenush;
var dessertsh;
var sundayh;
var lunchh;
var eventsh;

function readCookie(name) {
	var nameEQ = name + "=";
	var cookiearray = document.cookie.split(';');
	for(var i=0;i < cookiearray.length;i++) {
		var contents = cookiearray[i];
		while (contents.charAt(0)==' ') contents = contents.substring(1,contents.length);
		if (contents.indexOf(nameEQ) == 0) return contents.substring(nameEQ.length,contents.length);
	}
	return null;
}

function setdivheights() {
	divid = readCookie('ChinaDiner');
	if (divid == null) {divid = "appetisers";}
	
	if (divid == "appetisers") {menuid = "m1"}; 
	if (divid == "maincourse") {menuid = "m2"};
	if (divid == "rice") {menuid = "m3"};
	if (divid == "setmenus") {menuid = "m4"};
	if (divid == "desserts") {menuid = "m5"};
	if (divid == "sunday") {menuid = "m6"};
	if (divid == "lunch") {menuid = "m7"};
	if (divid == "events") {menuid = "m8"};
	
	document.getElementById("appetisers").style.height = 0 +"px";
	document.getElementById("maincourse").style.height = 0 +"px";
	document.getElementById("rice").style.height = 0 +"px";
	document.getElementById("setmenus").style.height = 0 +"px";
	document.getElementById("desserts").style.height = 0 +"px";
	document.getElementById("sunday").style.height = 0 +"px";
	document.getElementById("lunch").style.height = 0 +"px";
	document.getElementById("events").style.height = 0 +"px";
	document.getElementById("m1").className = "";
	document.getElementById("m2").className = "";
	document.getElementById("m3").className = "";
	document.getElementById("m4").className = "";
	document.getElementById("m5").className = "";
	document.getElementById("m6").className = "";
	document.getElementById("m7").className = "";
	document.getElementById("m8").className = "";
	
	newheight = 10;
	if (menuid == "m1") {newheight = appetisersh}; 
	if (menuid == "m2") {newheight = maincourseh};
	if (menuid == "m3") {newheight = riceh};
	if (menuid == "m4") {newheight = setmenush};
	if (menuid == "m5") {newheight = dessertsh};
	if (menuid == "m6") {newheight = sundayh};
	if (menuid == "m7") {newheight = lunchh};
	if (menuid == "m8") {newheight = eventsh};
	
	document.getElementById(divid).style.height = newheight +"px";
	document.getElementById(menuid).className = "this";
}

function setdivcookie(divid) {	
	document.cookie = 'ChinaDiner=' + divid + '; path=/';
	setdivheights();
}



function getdivheights() {
	appetisersh = document.getElementById("appetisers").offsetHeight;
	maincourseh = document.getElementById("maincourse").offsetHeight;
	riceh = document.getElementById("rice").offsetHeight;
	setmenush = document.getElementById("setmenus").offsetHeight;
	dessertsh = document.getElementById("desserts").offsetHeight;
	sundayh = document.getElementById("sunday").offsetHeight;
	lunchh = document.getElementById("lunch").offsetHeight;
	eventsh = document.getElementById("events").offsetHeight;
	
	if (appetisersh < 600){
		appetisersh = 600;		
	}
	
	if (maincourseh < 600){
		maincourseh = 600;		
	}
	
	if (riceh < 600){
		riceh = 600;		
	}
	
	if (setmenush < 600){
		setmenush = 600;		
	}
	
	if (dessertsh < 600){
		dessertsh = 600;		
	}
	
	if (sundayh < 600){
		sundayh = 600;		
	}
	
	if (lunchh < 600){
		lunchh = 600;		
	}
	
	if (eventsh < 600){
		eventsh = 600;		
	}
	
	setdivheights();
}

window.onload = getdivheights;