<table id="tt" style="width:700px;height:400px" > // the problem is here, try set height to 400px
<thead>
<tr>
<th field="inv" width="80">Inv No</th>
<th field="date" width="100">Date</th>
<th field="name" width="80">Name</th>
<th field="amount" width="80" align="right">Amount</th>
<th field="price" width="80" align="right">Price</th>
<th field="cost" width="100" align="right">Cost</th>
<th field="note" width="110">Note</th>
</tr>
</thead>
</table>
//here is json data i copied from firebug
{"total":"143","rows":[{"no":"1","domain":"www.test.com","status":"A","regdate":"10\/03\/2013","expdate":"30\/10\/2013","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-18 01:33:48","last_update":"2013-10-19 10:41:00","last_update_user":"admin","is_deleted":"0","remain":"1"},{"no":"2","domain":"www.test1.com","status":"A","regdate":"10\/03\/2013","expdate":"03\/10\/2014","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-18 01:33:48","last_update":"2013-10-19 10:41:00","last_update_user":"admin","is_deleted":"0","remain":"339"},{"no":"3","domain":"www.test2.com","status":"A","regdate":"10\/03\/2013","expdate":"03\/10\/2009","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-18 01:33:48","last_update":"2013-10-19 10:41:00","last_update_user":"admin","is_deleted":"0","remain":"-1487"},{"no":"4","domain":"www.test2.com","status":"D","regdate":"10\/03\/2013","expdate":"03\/10\/2009","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-18 01:33:48","last_update":"2013-10-19 10:41:00","last_update_user":"admin","is_deleted":"0","remain":"-1487"},{"no":"5","domain":"sdf","status":"A","regdate":"31\/10\/2013","expdate":"31\/10\/2014","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-21 20:55:37","last_update":"2013-10-21 20:55:37","last_update_user":"admin","is_deleted":"0","remain":"367"},{"no":"6","domain":"aaa","status":"D","regdate":"","expdate":"","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-21 20:57:00","last_update":"2013-10-21 20:57:00","last_update_user":"admin","is_deleted":"0","remain":null},{"no":"7","domain":"gga","status":"A","regdate":"25\/10\/2013","expdate":"25\/10\/2014","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-21 20:57:09","last_update":"2013-10-21 20:57:09","last_update_user":"admin","is_deleted":"0","remain":"361"},{"no":"8","domain":"gggg","status":"D","regdate":"","expdate":"","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-21 20:57:18","last_update":"2013-10-21 20:57:18","last_update_user":"admin","is_deleted":"0","remain":null},{"no":"9","domain":"gaaaa","status":"D","regdate":"25\/10\/2012","expdate":"25\/10\/2013","hosting":"1","url":"http:\/\/asdf@afd.adfd","webhosting":"adf","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"bbbb","contact":"vvv","other":"hhhh","date_submit":"2013-10-21 20:57:25","last_update":"2013-10-24 01:54:47","last_update_user":"admin","is_deleted":"0","remain":"-4"},{"no":"10","domain":"dwerew","status":"A","regdate":"01\/11\/2013","expdate":"01\/11\/2014","hosting":"0","url":"","webhosting":"","info":"","gmail":"0","gmailadmuser":"","gmailadmpwd":"","cpusername":"","cppwd":"","contact":"","other":"","date_submit":"2013-10-21 20:57:35","last_update":"2013-10-21 20:57:35","last_update_user":"admin","is_deleted":"0","remain":"368"}]}