(function($) {                  
var sessionData = {};                  
var windowName  = "";                  
var domain	= location.href.match(/\w+:\/\/[^\/]+/)[0];                  
var referrer	= (document.referrer) ? document.referrer.match(/\w+:\/\/[^\/]+/)[0] : "";                   
if(referrer == "" || referrer !== domain) {                          
	window.name = window.name.replace("#"+domain+"#", "");                  
}                                            
function loadData() {
	stored = window.name.split("#"+domain+"#");                          
	windowName = window.name = stored[0];                          
		if (data = stored[1]) {                                   
			$.each(data.split(";"), function(i, data) {                                                          
			parts           = data.split("=");                                                          
			varName         = parts[0];                                                          
			varValue        = unescape(parts[1]);                                                          
			sessionData[varName] = varValue;                                  
		});                          
	}                  
}                                    

function saveData() {                          
	var dataToStore = windowName+"#"+domain+"#";                          
	$.each(sessionData, function(varName, varValue) {                                                         
		if (varName && varValue) {                                                  
			dataToStore += ( varName + "=" + escape( varValue ) + ";" );                                          
			}                          
		});                         
	window.name = dataToStore;                  
}                                    

$.session = function(name, value) {                          
				if (value) {                                  
					if ($.isFunction(value)) {                                                  
						value = value();                                  
					}                                  
				if ( $.toJSON ) {                                          
					sessionData[name] = $.toJSON(value);                                 
				} else {                                          
					sessionData[name] = value;                                  
				}                          
				} else {                                  
					if ( $.evalJSON ) {                                          
						return $.evalJSON(sessionData[name]);                                  
					} else {                                         
						return sessionData[name];                                 
					}                          
				}                  
			}                                    
$.sessionStop = function() {                         
	saveData();                  
	}  
$.sessionStart = function() {                          
	loadData();                  
}                    
$.sessionStart();                  

window.onunload = function() { 
	$.sessionStop(); 
	};                            
})(jQuery);