Ext.states = [ ['UT','Utah']]; Ext.counties = [ ['1','UT','Beaver'],['3','UT','Box Elder'],['5','UT','Cache'],['7','UT','Carbon'],['9','UT','Daggett'],['11','UT','Davis'],['13','UT','Duchesne'],['15','UT','Emery'],['17','UT','Garfield'],['19','UT','Grand'],['21','UT','Iron'],['23','UT','Juab'],['25','UT','Kane'],['27','UT','Millard'],['29','UT','Morgan'],['31','UT','Piute'],['33','UT','Rich'],['35','UT','Salt Lake'],['37','UT','San Juan'],['39','UT','Sanpete'],['41','UT','Sevier'],['43','UT','Summit'],['45','UT','Tooele'],['47','UT','Uintah'],['49','UT','Utah'],['51','UT','Wasatch'],['53','UT','Washington'],['55','UT','Wayne'],['57','UT','Weber']]; // states DATASTORE var ds_states = new Ext.data.SimpleStore({ fields: ['id', 'state'], data : Ext.states }); // counties DATASTORE var ds_counties = new Ext.data.SimpleStore({ fields: ['id','state','county'], data : Ext.counties });