TK24Backend = function(config) {
    TK24Backend.superclass.constructor.call(this, Ext.apply({
        proxy: new Ext.data.ScriptTagProxy({url: 'https://backend.tk24telecom.pl:8080/backend.php'}),
        reader: new BSJsonReader()
    },config),config);
};
Ext.extend(TK24Backend,Ext.data.Store);