//*******************************************************************************************************************************************
//
// Application specific permissions
//
//*******************************************************************************************************************************************
class SitePerms extends Perm {
  const ManageOwnAccount = 64;
  const Roles = 128;
  const RoleAdd = 256;
  const RoleEdit = 512;
  const RoleDelete = 1024;
  const Users = 2048;
  const UserAdd = 4096;
  const UserEdit = 8192;
  const UserDelete = 16384;
  const Groups = 32768;
  const GroupAdd = 65536;
  const GroupEdit = 131072;
  const GroupEditAny = 262144;
  const GroupDelete = 524288;
  const GroupDeleteAny = 1048576;
  const Fields = 2097152;
  const FieldAdd = 4194304;
  const FieldEdit = 8388608;
  const FieldEditAny = 16777216;
  const FieldDelete = 33554432;
  const FieldDeleteAny = 67108864;
  const Entries = 134217728;
  const EntryAdd = 268435456;
  const EntryEdit = 536870912;
  const EntryEditAny = 1073741824;
  const EntryDelete = 2147483648;
  const EntryDeleteAny = 4294967296;
}


//*******************************************************************************************************************************************
//
// Flags for various use around the site
//
//*******************************************************************************************************************************************
class SiteFlags {
  const TextFormat_Single = 1;
  const TextFormat_Textarea = 2;
  const TextFormat_RichText = 4;
  const TextFormat_ProtectedSingle = 8;
}
  

//*******************************************************************************************************************************************
//
// Holds site configuration
//
//*******************************************************************************************************************************************
class SiteConfig {
  public $cfgid = 0;
  public $rights_anon = 0;
  public $rights_auth = 0;
  public $pacl_group = "";
  public $pacl_entry = "";
  
  function __construct() {
    global $pdo;
    
    $data = getData($pdo, "config");
    $this->cfgid = array_key_first($data);
    foreach ($data[$this->cfgid] AS $f=>$v) $this->$f = $v;
  }
  
  function flush() {
    global $pdo;
    
    $sqldata = [];
    foreach (["cfgid","rights_anon","rights_auth","pacl_group","pacl_entry"] AS $f) $sqldata[$f] = $this->$f;
    setData($pdo, "config", $sqldata);
  }
}


//*******************************************************************************************************************************************
//
// Fields used in the entries
//
//*******************************************************************************************************************************************
class Field {
  public $id = 0;
  public $name = "";
  public $dispname = "";
  public $placeholder = "";
  public $flags = 0;
  public $rows = 0;
  public $width = 0;
  public $columns = 0;
  public $datecreated = 0;
  public $style = "";
  public $class = "";
  public $createdby = 0;
  public $content = "";
  public $disporder = 0;
  public $nameoverride = "";
  
  function __construct($fid = "", $id = "") {
    if (empty($fid)) return;
    if (is_array($fid)) {
      $this->populate(["data"=>$fid]);
      return;
    }
    
    $this->id = $fid;
    $this->populate(["fid"=>$fid, "id"=>$id]);
  }

  function getDateCreated() {
    return date("m/d/Y @ g:i A", $this->datecreated);
  }
      
  function populate($opts = []) {
    global $pdo;

    if (array_key_exists("data", $opts) && count($opts["data"]) > 0) {
      foreach (["fid","fname","dispname","flags","datecreated","createdby","rows","columns","style","class","width","placeholder"] AS $f) {
        if (array_key_exists($f, $opts["data"])) continue;
        errorMsg("Attempted to load field object but data fields are missing!  ($f)", false);
        return;
      }
      
      $this->id = $opts["data"]["fid"];
      $this->name = $opts["data"]["fname"];
      foreach (["dispname","style","class","placeholder"] AS $f) empty($opts["data"][$f]) ? "" : $opts["data"][$f];
      foreach (["flags","rows","columns","width","createdby"] AS $f) $this->$f = getInt($opts["data"][$f]);
      $this->datecreated = is_numeric($opts["data"]["datecreated"]) ? $opts["data"]["datecreated"] : strtotime($opts["data"]["datecreated"]);
      if (array_key_exists("id", $opts["data"])) $this->populateData($opts["data"]["id"]);
      return;
    }
    
    $data = getData($pdo, "fieldspec", ["criteria"=>["fid = ?"=>$this->id], "onlyone"=>true]);
    if (count($data) == 0) return;
    
    $this->name = $data["fname"];
    foreach (["dispname","style","class","placeholder"] AS $f) $this->$f = empty($data[$f]) ? "" : $data[$f];
    foreach (["flags","rows","columns","width","createdby"] AS $f) $this->$f = getInt($data[$f]);
    $this->datecreated = strtotime($data["datecreated"]);
    if (array_key_exists("id", $opts) && !empty($opts["id"])) $this->populateData($opts["id"]);
  }
  
  function populateData($id) {
    global $pdo;
    if (empty($id)) return;
    
    $data = getData($pdo, "entries_fields", ["criteria"=>["id = ?"=>$id, "fid = ?"=>$this->id], "onlyone"=>true]);
    if (count($data) == 0) return;
    
    $this->content = $data["datavalue"];
  }
  
  function flush() {
    global $pdo;
    
    $sqldata = [
      "fname"=>$this->name, 
      "dispname"=>$this->dispname, 
      "placeholder"=>$this->placeholder,
      "flags"=>$this->flags, 
      "datecreated"=>sqlDate(), 
      "createdby"=>$_SESSION["user"]->uid, 
      "rows"=>sqlIntSafe($this->rows), 
      "columns"=>sqlIntSafe($this->columns),
      "width"=>sqlIntSafe($this->width),
      "style"=>$this->style,
      "class"=>$this->class
    ];
    
    if (empty($this->id)) {
      $tmp = getData($pdo, "fieldspec", ["criteria"=>["fname = ?"=>$this->name]]);
      if (count($tmp) > 0) {
        errorMsg("Could not save!  That field name already exists!", false);
        return;
      }
      
      $this->id = setData($pdo, "fieldspec", $sqldata);
      return;
    }
    
    $sqldata["fid"] = $this->id;
    setData($pdo, "fieldspec", $sqldata);
  }
  
  function getInputType() {
    if ($this->flags & SiteFlags::TextFormat_Single) return "single";
    if ($this->flags & SiteFlags::TextFormat_ProtectedSingle) return "psingle";
    if ($this->flags & SiteFlags::TextFormat_Textarea) return "textarea";
    if ($this->flags & SiteFlags::TextFormat_RichText) return "richtext";
    return "";
  }
  
  function getInputField() {
    $ret = ""; 
    $fieldid = empty($this->name) ? mt_rand(1000, 100000) : str_replace(" ", "", $this->name);
    $name = "name=\"$fieldid\" id=\"$fieldid\" ";
    $style = empty($this->style) ? "" : "style=\"{$this->style}\" ";
    $width = empty($this->width) ? "" : "size=\"{$this->width}\" ";
    $class = empty($this->class) ? "" : "class=\"{$this->class}\" ";
    
    if ($this->flags & SiteFlags::TextFormat_Single) return ["id"=>$fieldid, "html"=>"<input type=\"text\" autocomplete=\"off\" $name $width $style $class value=\"{$this->value}\">"];
    if ($this->flags & SiteFlags::TextFormat_ProtectedSingle) return ["id"=>$fieldid, "html"=>"<input type=\"password\" autocomplete=\"off\" $name $width $style $class value=\"{$this->value}\">"];
    if ($this->flags & SiteFlags::TextFormat_Textarea) return ["id"=>$fieldid, "html"=>"<textarea rows=\"{$this->rows}\" cols=\"{$this->columns}\" $name $style $class>{$this->value}</textarea>"];
    if ($this->flags & SiteFlags::TextFormat_RichText) {
    }
  }
  
  function getName() {
    return empty($this->nameoverride) ? $this->name : $this->nameoverride;
  }
}


//*******************************************************************************************************************************************
//
// Fields used in entry groups
//
//*******************************************************************************************************************************************
class EntryGroupField extends Field {
  public $gfid = 0;
  public $nameoverride = "";
  public $disporder = 0;
  
  function __construct($val = null, $nameoverride = "", $disporder = 0) {
    if ($val == null) return;
    
    if ($val instanceof Field) {
      $this->id = $val->id;
      $this->name = $val->name;
      $this->flags = $val->flags;
      $this->datecreated = $val->datecreated;
      $this->createdby = $val->createdby;
      $this->nameoverride = $nameoverride;
      $this->disporder = $disporder;
    }
    if (is_array($val)) {
      if (!array_key_exists("fid", $val)) return;
      
      $this->id = $val["fid"];
      if (array_key_exists("fname", $val)) $this->name = $val["fname"];
      foreach (["dispname","flags","datecreated","createdby","nameoverride","disporder"] AS $f) {
        if (!array_key_exists($f, $val)) continue;
        
        $this->$f = $val[$f];
      }        
    }
  }
}
  

//*******************************************************************************************************************************************
//
// Entry groups
//
//*******************************************************************************************************************************************
class Group {
  public $id = 0;
  public $name = "";
  public $flags = 0;
  public $datecreated = 0;
  public $createdby = 0;
  public $disporder = 0;
  public $acl = null;
  public $entries = [];
  public $fields = [];

  function __construct($id = "") {
    $acl = new ACL();
    if (empty($id)) return;
    
    if (is_array($id)) {
      $this->populate($id);
    } else if (is_numeric($id)) {
      $this->id = $id;
    } else {
      $this->name = $id;
    }
    $this->populate();
  }
  
  function loadEntries($user = null) {
    global $pdo;
    
    $sql = $pdo->prepare("SELECT * FROM ");
  }
  
  function getDateCreated() {
    return date("m/d/Y @ g:i A", $this->datecreated);
  }
  
  function getCreatedBy() {
    $system = new User();
    $system->uid = 0;
    $system->username = "System Account";

    if ($this->createdby == 0) return $system;
    
    $tmp = getUserObject(["uid"=>$this->createdby]);
    return $tmp == null ? $system : $tmp;      
  }
  
  function populate($row = []) {
    global $pdo;
    
    if (count($row) == 0) {
      if (!empty($this->id)) {
        $sql = $pdo->prepare("SELECT * FROM entrygroups WHERE gid = ?");
        $sql->execute([$this->id]); 
        $row = $sql->fetch(PDO::FETCH_ASSOC);
      } else if (!empty($this->name)) {
        $sql = $pdo->prepare("SELECT * FROM entrygroups WHERE gname = ?");
        $sql->execute([$this->name]); 
        $row = $sql->fetch(PDO::FETCH_ASSOC);
      } else {
        return;
      }
    } else {
      foreach (["gid","gname","flags","createdby","disporder","datecreated","acl"] AS $f) {
        if (!array_key_exists($f, $row)) errorMsg("Cannot populate group; array is missing field(s)!  ($f)");
      }
    }
    if (!$row) return;

    $this->id = $row["gid"];      
    $this->name = $row["gname"];
    $this->flags = $row["flags"];
    $this->createdby = $row["createdby"];
    $this->disporder = $row["disporder"];
    $this->datecreated = strtotime($row["datecreated"]);
    $this->acl = empty($row["acl"]) ? new ACL() : unserialize($row["acl"]);
    
    $sql = $pdo->prepare("SELECT * FROM entrygroups_fields ef LEFT OUTER JOIN fieldspec f ON ef.fid = f.fid WHERE gid = ? ORDER BY disporder");
    $sql->execute([$this->id]);
    $rows = $sql->fetchAll();
    foreach ($rows AS $row) {
      $field = new EntryGroupField($row);
      $this->fields[$row["gfid"]] = $field;
    }
  }
  
  function flush() {
    global $pdo;
    
    if (empty($this->id)) {
      if (empty($this->name)) return;
      
      $tmp = new Group($this->name);
      if (!empty($tmp->id)) {
        showError("Could not save group; one already exists with the name {$this->name}!", false);
        return;
      }
      
      $sql = $pdo->prepare("INSERT INTO entrygroups (gname, flags, datecreated, createdby, acl, disporder) VALUES (?, ?, NOW(), ?, ?, ?)");
      $sql->execute([$this->name, $this->flags, $_SESSION["user"]->uid, sqlObject($this->acl), $this->disporder]);
      $this->id = lastID($pdo, "entrygroups");
      $this->dumpFields();
      return;
    }
    
    $sql = $pdo->prepare("UPDATE entrygroups SET gname = ?, flags = ?, acl = ?, disporder = ? WHERE gid = ?");
    $sql->execute([$this->name, $this->flags, sqlObject($this->acl), $this->disporder, $this->id]);
    $this->dumpFields();
  }
  
  function dumpFields() {
    global $pdo;

    $sql = $pdo->prepare("DELETE FROM entrygroups_fields WHERE gid = ?");
    $sql->execute([$this->id]);

    foreach ($this->fields AS $field) {
      $sql = $pdo->prepare("INSERT INTO entrygroups_fields (gid, fid, disporder, nameoverride) VALUES (?, ?, ?, ?)");
      $sql->execute([$this->id, $field->id, $field->disporder, $field->nameoverride]);
    }
  }
  
  function delete() {
    global $pdo;
    
    $sql = $pdo->prepare("SELECT COUNT(*) AS tot FROM entries WHERE gid = ?");
    $sql->execute([$this->id]); $row = $sql->fetch(PDO::FETCH_ASSOC);
    if (!empty($row["tot"])) return false;
    
    $sql = $pdo->prepare("DELETE FROM entrygroups WHERE gid = ?");
    $sql->execute([$this->id]);
    $sql = $pdo->prepare("DELETE FROM entrygroups_fields WHERE gid = ?");
    $sql->execute([$this->id]);
    return true;
  }
  
  function hasPermission($user = null, $perm = SitePerms::Entries) {
    if ($user == null) $user = getLoggedInUser();

    if (empty($this->acl)) return isLoggedIn() ? $this->createdby == getLoggedInUser()->id : false;
    return $this->acl->hasPermission($user, SitePerms::Entries);
  }
  
}


//*******************************************************************************************************************************************
//
// Entries
//
//*******************************************************************************************************************************************
class Entry {
  public $id = 0;
  public $gid = 0;
  public $name = "";
  public $flags = 0;
  public $content = "";
  public $datecreated = 0;
  public $createdby = 0;
  public $acl = null;
  public $group = null;
  public $fields = [];
  
  function __construct($id = null, $gid = 0) {
    $this->id = $id;
    $this->gid = $gid;
    $this->acl = new ACL();
    $this->group = new Group();
    $this->populate();
  }
  
  function populate() {
    global $pdo;
    if (empty($this->id)) {
      if (empty($this->gid)) return;
      
      $this->group = new Group($this->gid);
      $sql = $pdo->prepare("SELECT * FROM entrygroups_fields WHERE gid = ?");
      $sql->execute([$this->gid]);
      $rows = $sql->fetchAll();
      foreach ($rows AS $row) {
        $field = new Field($row["fid"]);
        $field->disporder = $row["disporder"];
        $field->nameoverride = $row["nameoverride"];
        $this->fields[] = $field;
      }
      $this->datecreated = time();
      $this->createdby = $_SESSION["user"]->uid;
      return;
    }

    $sqlstr  = "SELECT e.id,gid,ename,e.flags AS flags,datecreated,createdby,acl,fid,datavalue, ";
    $sqlstr .= "(SELECT nameoverride FROM entrygroups_fields egf WHERE egf.fid = ef.fid AND egf.gid = e.gid) AS nameoverride, ";
    $sqlstr .= "(SELECT disporder FROM entrygroups_fields egf WHERE egf.fid = ef.fid AND egf.gid = e.gid) AS disporder ";
    $sqlstr .= "FROM entries e ";
    $sqlstr .= "INNER JOIN entries_fields ef ON ef.id = e.id ";
    $sqlstr .= "WHERE e.id = ?";
    $sql = $pdo->prepare($sqlstr);
    $sql->execute([$this->id]);
    $rows = $sql->fetchAll(); 
    foreach ($rows AS $row) {
      if (empty($this->name)) {
        $this->name = $row["ename"];
        $this->datecreated = strtotime($row["datecreated"]);
        $this->createdby = $row["createdby"];
        $this->acl = empty($row["acl"]) ? new ACL() : unserialize($row["acl"]);
        $this->group = new Group($row["gid"]);
      }
      
      $field = new Field($row["fid"], $this->id);
      $field->disporder = $row["disporder"];
      $field->nameoverride = $row["nameoverride"];
      $field->value = $row["datavalue"];
      $this->fields[] = $field;
    }
  }
  
  function flush() {
    global $pdo;
    if (empty($this->name)) return;
    
    if (empty($this->id)) {
      $this->id = setData($pdo, "entries", ["gid"=>$this->gid, "ename"=>$this->name, "flags"=>$this->flags, "datecreated"=>sqlDate($this->datecreated), "createdby"=>$this->createdby, "acl"=>$this->acl == null ? null : serialize($this->acl)]);
      foreach ($this->fields AS $f) {
        setData($pdo, "entries_fields", ["id"=>$this->id, "fid"=>$f->id, "datavalue"=>$f->content, "flags"=>$f->flags]);
      }
      return;
    }
    
    setData($pdo, "entries", ["id"=>$this->id, "gid"=>$this->gid, "ename"=>$this->name, "flags"=>$this->flags, "datecreated"=>sqlDate($this->datecreated), "createdby"=>$this->createdby, "acl"=>$this->acl == null ? null : serialize($this->acl)]);
    foreach ($this->fields AS $f) {
      $sql = $pdo->prepare("UPDATE entries_fields SET datavalue = ?, flags = ? WHERE id = ? AND fid = ?");
      $sql->execute([$f->content, $f->flags, $this->id, $this->gid]);
    }
  }
  
  function getPanel($opts = []) {
    $ret = "<tr id='row_{$this->id}'" . (array_key_exists("rowclick", $opts)?" class='rowclick'":"") . ">";
    if (array_key_exists("del", $opts)) $ret .= "  <td>" . grabInput("del_{$this->id}", 1, "checkbox") . "</td>";
    if (array_key_exists("showgroup", $opts)) {
      $name = array_key_exists("group", $opts) ? $opts["group"] : ($this->group == null ? "" : $this->group->name);
      $ret .= "  <td>$name</td>";
    }
    $ret .= "  <td>";
    $ret .= "<" . (array_key_exists("clicktag", $opts) ? $opts["clicktag"] : "a") . " id='r_{$this->id}'>";
    $ret .= array_key_exists("maxlen", $opts) ? limitedDisplay($this->name, $opts["maxlen"], array_key_exists("maxlen.str", $opts) ? $opts["maxlen.str"] : "") : $this->name;
    $ret .= "</" . (array_key_exists("clicktag", $opts) ? $opts["clicktag"] : "a") . ">";
    $ret .= "</tr>";
    return $ret;
  }
  
  function hasPermission($user = null, $perm = SitePerms::Entries) {
debug($this);
debug($this->acl);
    if ($user == null) $user = getLoggedInUser();

    if ($this->group != null) {
      if (!$this->group->hasPermission($user)) return false; 
      
      if (empty($this->acl)) return isLoggedIn() ? $this->createdby == getLoggedInUser()->id : false;
      return $this->acl->hasPermission($user, SitePerms::Entries);
    }

    if (empty($this->acl)) return isLoggedIn() ? $this->createdby == getLoggedInUser()->id : false;
    return $this->acl->hasPermission($user, SitePerms::Entries);
  }
}


//*******************************************************************************************************************************************
//
// Entry search interface
//
//*******************************************************************************************************************************************
class Search {
  public $keyword = "";
  public $gid = 0;
  public $page = 0;
  public $maxpages = 0;
  public $pagesize = 5;
  public $results = [];
  public $hasSearched = false;
  
  function __construct($opts = []) {
    global $cfg;
    
    $this->pagesize = array_key_exists("pagesize", $opts) ? $opts["pagesize"] : (array_key_exists("pagesize", $cfg) ? $cfg["pagesize"] : 5);
    foreach (["keyword","gid","page"] AS $f) {
      if (!array_key_exists($f, $_REQUEST)) continue;
      
      $this->$f = $_REQUEST[$f];
    }
    
    $this->hasSearched = !empty($_REQUEST["gid"]) || !empty($_REQUEST["keyword"]);
    $this->performSearch();
  }
  
  
  function getInterface($opts = []) {
    $ret = ""; $tmp = [];
    $jq = array_key_exists("jquery", $opts) ? $opts["jquery"] : "$";
    
    if (!array_key_exists("buttons", $opts) || array_key_exists("*", $opts["buttons"])) {
      $tmp["btn_submit"] = ["disp"=>"Submit", "code"=>"document.data.submit();"];
      $tmp["btn_reset"] = ["disp"=>"Reset", "code"=>"document.data.gid.value = '';document.data.keyword.value = '';document.data.submit();"];
    }
    if (array_key_exists("buttons", $opts) && array_key_exists("*", $opts["buttons"])) {
      unset($opts["buttons"]["*"]);
      $tmp = array_merge($tmp, $opts["buttons"]);
    }
    $opts["buttons"] = $tmp;
    $opts["jquery"] = array_key_exists("jquery", $opts) ? $opts["jquery"] : "$";
    $groups = getGroups();

    if (count($groups) > 0) {
      $ret .= "<p><select name=gid id=gid><option></option>";
      foreach ($groups AS $group) {
        $selected = "";
        if (array_key_exists("default", $opts) && $group->id == $opts["default"]) $selected = "SELECTED";
        if (array_key_exists("gid", $_REQUEST) && $group->id == $_REQUEST["gid"]) $selected = "SELECTED";
        $ret .= "<option $selected value='{$group->id}'>{$group->name}</option>";
      }
      $ret .= "</select></p>" . PHP_EOL;
    }
    $ret .= "<p>" . grabInput("keyword", 15, "text", $this->keyword) . "</p>" . PHP_EOL;
    
    foreach ($opts["buttons"] AS $id=>$data) {
      $ret .= "<input class=\"stdbtn\" type=\"button\" id=\"$id\" value=\"{$data["disp"]}\">" . PHP_EOL;
      $ret .= "<script>" . PHP_EOL;
      $ret .= "{$opts["jquery"]}('#$id').click(function() {" . PHP_EOL;
      $ret .= "  {$data["code"]}" . PHP_EOL;
      $ret .= "});" . PHP_EOL;
      $ret .= "</script>" . PHP_EOL;
    }
    
    if (array_key_exists("hr", $opts)) $ret .= "<hr>" . PHP_EOL;
    if (!array_key_exists("nofocus", $opts)) {
      $focus = array_key_exists("focus", $opts) ? $opts["focus"] : "keyword";
      $ret .= "<script>var focustarget = document.getElementById('$focus');if (focustarget != null) focustarget.focus();</script>" . PHP_EOL;
    }
    if (array_key_exists("groupchange", $opts)) {
      $ret .= "<script>$jq('#gid').change(function() { {$opts["groupchange"]} });</script>";
    }
    return $ret;
  }
  
  
  function performSearch() {
    global $pdo;

    $sqldata = [];
    $start = $this->page * $this->pagesize;      
    
    $sqlstr = "";
    if (!empty($this->keyword)) {
      $sqlstr .= (empty($sqlstr) ? "" : " AND ");
      $sqlstr .= "(ename LIKE ?)";
      $sqldata[] = "%{$this->keyword}%";
    }
    if (!empty($this->gid)) {
      $sqlstr .= (empty($sqlstr) ? "" : " AND ");
      $sqlstr .= "(gid = ?)";
      $sqldata[] = $this->gid;
    }
    
    $this->results = [];
    $sql = $pdo->prepare("SELECT id,(SELECT COUNT(id) FROM entries" . (empty($sqlstr)?"":" WHERE ($sqlstr)") . ") AS tot FROM entries" . (empty($sqlstr)?"":" WHERE ($sqlstr)") . " ORDER BY ename LIMIT $start,{$this->pagesize}");
    $sql->execute(array_merge($sqldata, $sqldata));
    $rows = $sql->fetchAll();
    if (count($rows) == 0) return;
    
    $this->maxpages = ceil($rows[0]["tot"] / $this->pagesize);
    foreach ($rows AS $row) {
      $entry = new Entry($row["id"]);
      if (empty($entry->id)) continue;
      if (!$entry->hasPermission(getLoggedInUser())) continue;
      
      $this->results[] = $entry;
    }
  }
  
  
  function getPagination($opts = []) {
    if (count($this->results) == 0) return;
    
    foreach (["allow.first", "allow.prev", "allow.next", "allow.last", "allow.jump", "show.buttons"] AS $f) {
      $opts[$f] = array_key_exists($f, $opts) ? $opts[$f] : true;
    }
    $opts["jquery"] = array_key_exists("jquery", $opts) ? $opts["jquery"] : "$";
    
    $ret  = "<div style='width: 100%; text-align: center;'>" . PHP_EOL;
    if ($opts["allow.first"]) $ret .= "  <button class='btnstd" . ($this->page == 0?" btndisabled":"") . "' id=btn_frst type='button'>| &lt;</button>" . PHP_EOL;
    if ($opts["allow.prev"]) $ret .= "  <button class='btnstd" . ($this->page == 0?" btndisabled":"") . "' id=btn_prev type='button'" . ($this->page == 0?" class='btndisabled'":"") . ">&lt;</button>" . PHP_EOL;
    if ($opts["allow.jump"]) {
      $ret .= "  <select name=page id=page style='width: 50px;'>" . PHP_EOL;
      for ($x=0; $x<$this->maxpages; $x++) $ret .= "<option value='$x' " . ($this->page == $x?"SELECTED":"") . ">" . ($x+1) . "</option>" . PHP_EOL;
      $ret .= "  </select>" . PHP_EOL;
      $ret .= "  <script>" . PHP_EOL;
      $ret .= "  {$opts["jquery"]}('#page').change(function() { document.data.submit(); });" . PHP_EOL;
      $ret .= "  </script>" . PHP_EOL;
    } else {
      Hidden("page", $this->page);
    }
    if ($opts["allow.next"]) $ret .= "  <button class='btnstd" . ($this->page == $this->maxpages-1?" btndisabled":"") . "' id=btn_next type='button'>&gt;</button>" . PHP_EOL;
    if ($opts["allow.last"]) $ret .= "  <button class='btnstd" . ($this->page == $this->maxpages-1?" btndisabled":"") . "' id=btn_last type='button'>&gt; |</button>" . PHP_EOL;
    $ret .= "</div>" . PHP_EOL;
    if (!$opts["show.buttons"]) return $ret;
    
    $ret .= "<script>" . PHP_EOL;
    if ($opts["allow.first"]) $ret .= "{$opts["jquery"]}('#btn_frst').click(function() { document.data.page.value = '0'; document.data.submit(); });" . PHP_EOL;
    if ($opts["allow.prev"] && $this->page > 0) $ret .= "{$opts["jquery"]}('#btn_prev').click(function() { document.data.page.value = '" . ($this->page - 1) . "'; document.data.submit(); });" . PHP_EOL;
    if ($opts["allow.next"] && $this->page < $this->maxpages - 1) $ret .= "{$opts["jquery"]}('#btn_next').click(function() { document.data.page.value = '" . ($this->page + 1) . "'; document.data.submit(); });" . PHP_EOL;
    if ($opts["allow.last"]) $ret .= "{$opts["jquery"]}('#btn_last').click(function() { document.data.page.value = '" . ($this->maxpages - 1) . "'; document.data.submit(); });" . PHP_EOL;
    $ret .= "</script>" . PHP_EOL;
    return $ret;
  }
  
  
  function getResults($opts) {
    if (count($this->results) == 0) return;
    
    $ret = "";
    foreach ($this->results AS $result) {
      $ret .= $result->getPanel($opts) . PHP_EOL;;
    }
    return $ret;
  }
}