supplied argument error

I keep getting a "Supplied argument is not a valid MySQL result resource" on line 7 of this bit of code.

Can anyone help?

<?php

require("func_connect.php");
connect ("localhost","tantrum");

$result = mysql_query("SELECT * FROM tantrum WHERE company=$company");
if ($data = mysql_fetch_array($result)) {

do {
$thumbnail = $data["thumbnail"];
$id = $data["id"];

echo "<a href=\"show_product.php?id=$id\">
<img src=\"$thumbnail\" hspace=\"5\" border=\"1\"></a>";
}

while ($newsrow = mysql_fetch_array($result));
}

   else {
   echo "No items at this time.";
   }

a beginner says thanks in advance,
dast

2 things:

connect ("localhost","tantrum");
I assume you have written your own db connection function, Double check that you are supplying it with a valid host, username and password. If you don't already, have your function return an error on connection failure
$result = mysql_query("SELECT * FROM tantrum WHERE company=$company");
unless $company is an integer you must put it in single quotes: '$company'

thanks a lot mate, the second point sorted out my problem 🙂