combine multiple chains with jQuery.Deferred

jquery_deferred_chains.js

$.when(
	sushi_roll(),
	dispatch()
).done(function() {
	console.log('accepted:', arguments[0], arguments[1]);
});

var n = 0;
function dispatch() {
	return $.Deferred(function(dispached) {
		$.when.apply(this, $.map(['genmai-cha','soba','tenpura'], function(v) {
			return $.Deferred(function(dfd) {
				setTimeout(function() {
					console.log("resolve "+v);
					dfd.resolve(v);
				}, Math.random() * 1500);
			})
			.done(function(msg) {
				console.log('done:'+msg);
			});
		}))
		.done(function() {
			console.log('done all');
			dispached.resolve('dispache done');
		});
	});
}

function sushi_roll() {
	return $.Deferred(function(d) {
		$.when(
			proc_a(),
			proc_b()
		)
		.done(function(deco,rice) {
			console.log('accepted:',deco,rice);
			d.resolve('roll');
		});
	});
}


function proc_a() {
	return $.Deferred(function(d) {
		setTimeout(function() {
			d.resolve('set tsuna');
		}, Math.random() * 1000);
	});	
}
function proc_b() {
	return $.Deferred(function(d) {
		setTimeout(function() {
			d.resolve('set rice');
		}, Math.random() * 2000);
	});	
}