uiinvite = function(pgroupid, pusername, pid) {
	$.getJSON(
		HOST_CUOCHEN+'ajax/uiinvite?username='+pusername+'&callback=?', {groupid:pgroupid, id:pid},
		function (response) {
			$.blockUI({
				message: response['msg'],
				css: {
					background: 'none',
					border: 'none',
					top:  ($(window).height() - 300)/2 + 'px',
					left: ($(window).width() - 500)/2 + 'px',
					cursor: 'pointer'
				}
			});
		}
	);
}