var comet_passport=
{
	// 查询Passport当前登录用户的session_id
	get_passport_session: function( client_callback )
	{
		$.ajax(
		{  
			dataType: 'jsonp',  
			data: 'type=js',  
			jsonp: 'jsonp_callback',  
			url: 'http://www.cometid.com/passport/query', 
			success: function ( data ) 
			{    
				client_callback( data.sid );
			},
			
		});	
	}
};