Ext.states = [ ]; Ext.counties = [ ['1','CA','Alameda'],['3','CA','Alpine'],['5','CA','Amador'],['7','CA','Butte'],['9','CA','Calaveras'],['11','CA','Colusa'],['13','CA','Contra Costa'],['15','CA','Del Norte'],['17','CA','El Dorado'],['19','CA','Fresno'],['21','CA','Glenn'],['23','CA','Humboldt'],['25','CA','Imperial'],['27','CA','Inyo'],['29','CA','Kern'],['31','CA','Kings'],['33','CA','Lake'],['35','CA','Lassen'],['37','CA','Los Angeles'],['39','CA','Madera'],['41','CA','Marin'],['43','CA','Mariposa'],['45','CA','Mendocino'],['47','CA','Merced'],['49','CA','Modoc'],['51','CA','Mono'],['53','CA','Monterey'],['55','CA','Napa'],['57','CA','Nevada'],['59','CA','Orange'],['61','CA','Placer'],['63','CA','Plumas'],['65','CA','Riverside'],['67','CA','Sacramento'],['69','CA','San Benito'],['71','CA','San Bernardino'],['73','CA','San Diego'],['75','CA','San Francisco'],['77','CA','San Joaquin'],['79','CA','San Luis Obispo'],['81','CA','San Mateo'],['83','CA','Santa Barbara'],['85','CA','Santa Clara'],['87','CA','Santa Cruz'],['89','CA','Shasta'],['91','CA','Sierra'],['93','CA','Siskiyou'],['95','CA','Solano'],['97','CA','Sonoma'],['99','CA','Stanislaus'],['101','CA','Sutter'],['103','CA','Tehama'],['105','CA','Trinity'],['107','CA','Tulare'],['109','CA','Tuolumne'],['111','CA','Ventura'],['113','CA','Yolo'],['115','CA','Yuba']]; // 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 });