Access child methods via parent class using this in dojo

http://stackoverflow.com/questions/10658652/access-child-methods-via-parent-class-using-this-in-dojo/10659499#10659499

HTML

<div id="test"></div>
<button id="graphBtn" data-dojo-type="dijit/form/Button" type="button">Show / Hide Graphs</button>

JavaScript

// Define class 
dojo.declare("mynamespace.myClass",null,{
    myMethodTrue: function() { dojo.byId("test").innerHTML = 'True' },
    myMethodFalse: function() { dojo.byId("test").innerHTML = 'False'},
    myMethodToggle: function() {
        if (dijit.byId("graphBtn").checked  ==  true)
		    {myMethodTrue()}
	    else 
			{myMethodFalse()}
    } 
});
                            
var x = new mynamespace.myClass();
x.myMethodTrue();

on(registry.byId("graphBtn"),"click", x.myMethodToggle());