Show / Hide Add new depending on content

Stephan,
you can do the following:

• proceed to the Visual Editor tab, switch to HTML mode,
  
• find this code:
  

  <INPUT class=button onclick="java script:window.location.href='_test_add.php'" type=button value="Add new" disptype="control1">
  

and replace it with this one:

{if $addnew}<INPUT class=button onclick="java script:window.location.href='_test_add.php'" type=button value="Add new" disptype="control1">{/if}

• then add List page: Before Display event on the Events tab.
  
  Here is a sample:
  

  global $conn;
  

  
  $str = "select count(*) from TableName where UserName='".$_SESSION["UserID"]."'";
  
  $rs = db_query($str,$conn);
  
  $data = db_fetch_numarray($rs);
  
  if ($data[0])
  
  $smarty->assign("addnew",0);
  
  else
  
  $smarty->assign("addnew",1);

I have problems with this: The button shows on empty as well as when there is a listing already. Please verify which fields the red info should refer to:
QUOTE
<INPUT class=button onclick="java script:window.location.href='_test_add.php' " type=button value="Add new" disptype="control1">
and replace it with this one:
QUOTE
{if $addnew}<INPUT class=button onclick="java script:window.location.href='_test_add.php' " type=button value="Add new" disptype="control1">{/if}

• then add List page: Before Display event on the Events tab.
  
  Here is a sample:
  QUOTE
  global $conn;
  
  $str = "select count(*) from [color="#FF0000"]TableName - have it _PlayerInformation where UserID - not sure"]."'";
  
  $rs = db_query($str,$conn);
  
  $data = db_fetch_numarray($rs);
  
  if ($data[0])
  
  $smarty->assign("addnew",0);
  
  else
  
  $smarty->assign("addnew",1);
  I don't need to use a button, can be a normal text link, if this will make it easier.

Stephan,
make sure your query return correct value:

$str = "select count(*) from _PlayerInformation where UserName='".$_SESSION["UserID - not sure"]."'";

UserName is your actual field name where login name is stored.