function authInfo(response) {
	if (typeof response != 'undefined' && response.session) {
		$('#vk_login').hide();
		$('#vk_logout').show();
	} else {
		$('#vk_login').show();
		$('#vk_logout').hide();
	}
}
$(function(){
	VK.init({
		apiId: 2335068,
		nameTransportPath: "/demo/xd_receiver.html"
	});
	VK.Auth.getLoginStatus(authInfo);
	$('#vk_login').click(function(){
		VK.Auth.login(authInfo, 8);
	});
	$('#vk_logout').click(function(){
		VK.Auth.logout(authInfo);
	});
})

function loadTracksData(query, callback) {
	VK.Api.call('audio.search', {q:query}, function(r){
		callback(r.response[1].url);
	})
}