jquery - How to share variables between classes in javascript -

i expanding js knowledge building custom libraries on-top of jquery/js , classes have interact between each other. coming php, there use static variables, have no idea in js. here example of want:

var = function() {     this.mypublicvar = "thisshouldbeprintedfromclassb"; }  a.prototype = {     showmyvar : function() {alert(this.mypublicvar);} // gets triggered on direct access. }  var b = function() {} b.prototype = {     // have no idea how to access a.mypublicvar } 

anyone provide me simple tutorial or anything?

ps: have started expand js knowledge, have used js/jquery easy design purposes (using selectors , building data validators , etc.)

you can use inheritance access variable.

var = function() {     this.mypublicvar = "thisshouldbeprintedfromclassb"; }  a.prototype = {     showmyvar : function() {alert(this.mypublicvar);} // gets triggered on direct access. }  var b = function() {} b.prototype = new a(); b.prototype.print = function(){   alert(this.mypublicvar); }  var b = new b(); b.print();