<a href="javascript:моя_функция(м.б.параметры)>"здесь был кто-то</a>

<a href="index.php{$smarty.session.values.sessid}&action=delete&grid_id={$contacts[outer].id}"  onclick="del_data('{$smarty.section.outer.rownum}','{$contacts[outer].id}'); return false">[delete]
 </a>

<a href="index.php{$smarty.session.values.sessid}&action=delete&grid_id={$contacts[outer].id}"  onclick="del_data('{$smarty.session.values.sessid}','{$smarty.section.outer.rownum}','{$contacts[outer].id}'); return false">[delete]
 </a>

function del_data(sessionstr,username, grid_id)
{
b=confirm("Do you really want to delete the record id "+username+"?");
if(b){
window.document.frmGrid.action="index.php"+sessionstr+"&action=delete&grid_id="+grid_id;
window.document.frmGrid.submit();
}
}

$_SESSION['values']['sessid']='?'.session_name().'='.session_id();