создание таблицы js: undefined (caption??)

			var t_content;
			for(var i in numbers.names) **
				if (!numbers.names.hasOwnProperty(i)) continue;
				t_content = t_content + '\
				<tr>\
				<td align="center" class="td"><a href="#" onClick="numbers.edit('+i+')">'+i+'</td>\
				<td align="left" class="td">'+numbers.names[i]+'</td>\
				<td align="left" class="td">'+numbers.emails[i]+'</td>\
				<td align="left" class="td">'+numbers.voicemail_pwd[i]+'</td>\
				<td align="center" valign="middle" class="td"><a href="" onClick="numbers.edit('+i+'); return false;"><img src="../images/edit.gif"></a>&nbsp;<a href="#" onClick="numbers.remove('+i+')"><img src="../images/delete.gif"></a></td>\
				</tr>\
				';
				**
			t_content = '\
			Список внутренних номеров:<br>\
			<table width="100%" class="table">\
			<thead>\
			<tr>\
			<td width="10%" align="center" class="td"><strong>Номер</strong></td>\
			<td width="40%" align="left" class="td"><strong>ФИО</strong></td>\
			<td width="35%" align="left" class="td"><strong>Email</strong></td>\
			<td width="10%" align="left" class="td"><strong>Пароль</strong></td>\
			<td class="td">&nbsp;</td>\
			</tr>\
			'+t_content+'\
			</thead>\
			</table>\
			';
			$('#internal_numbers').html(t_content);