var DEFAULT_EXPIRES_DAYS = 15;

var CookieManager = {
	save: function(name,value,days) {
		if (days) {
			var date=new Date();
			date.setTime(date.getTime()+(days*24*60*60*1000));
			var expires="; expires="+date.toGMTString();
		} 
		else expires = "";
		document.cookie = name+"="+value+expires+"; path=/";
	},
	read: function(name) {
		var nameEQ=name+"=";
		var ca=document.cookie.split(';');
		for(var i=0;i<ca.length;i++) {
			var c=ca[i];
			while (c.charAt(0)==' ') c=c.substring(1,c.length);
			if (c.indexOf(nameEQ)==0) return c.substring(nameEQ.length,c.length);
		}
		return null;
	},
	remove: function(name) {
		CookieManager.save(name,"",-1);
	}
}


var ExpandManager = {

	expand : function(id) {
		var elm = document.getElementById(id + "Body");
		var elmHeader = document.getElementById(id + "Header");
		elm.style.display = "block";
		elmHeader.className = "head";
		CookieManager.save(id,1,DEFAULT_EXPIRES_DAYS);

	},
	reduce : function(id) {
		var elm = document.getElementById(id + "Body");
		var elmHeader = document.getElementById(id + "Header");
		elm.style.display = "none";
		elmHeader.className = "head reducedHead";
		CookieManager.save(id,0,DEFAULT_EXPIRES_DAYS);

	},
	swap : function(id) {
		var elm = document.getElementById(id + "Body");
		if (elm.style.display != "none")
		{
			ExpandManager.reduce(id);
		} else {
			ExpandManager.expand(id);
		}
	},
	
	expandAdmin : function(id) {
		var elm = document.getElementById(id + "Body");
		var elmHeader = document.getElementById(id + "Header");
		elm.style.display = "block";
		elmHeader.className = "head reducedHead";
		CookieManager.save(id,1,DEFAULT_EXPIRES_DAYS);
	},
	reduceAdmin : function(id) {
		var elm = document.getElementById(id + "Body");
		var elmHeader = document.getElementById(id + "Header");
		elm.style.display = "none";
		elmHeader.className = "head";
		CookieManager.save(id,0,DEFAULT_EXPIRES_DAYS);
	},
	
	
	swapBloc : function(id) {
		var elm = document.getElementById(id + "Body");
		if (elm.style.display != "block")
		{
			ExpandManager.expandAdmin(id);
		} else {
			ExpandManager.reduceAdmin(id);
		}
	}
}