connect to a CouchDB that syncs locally to indexDB if available, if not tries webSQL, finally just follow the CouchDB directly.

pouch.js

function pouchSync(dbURL,cb){
	var dbName = dbURL.split("/").pop();
	Pouch(dbName,function(err1,db1){
			Pouch(dbUrl,function(err2,db2){
				if (db1 && db2){
					db1.replicate.from(db2,{continuous:true});
					db1.replicate.to(db2,{continuous:true});
					cb(null, db1);
				}else if (db2){
					cb(null, db2);
				}else{
					cb(true);
				}
			});
	});
}