Select option box help (pulling from db)?

I would like for the drop down box to have a list of the states within my database but without duplicating them.

My code:

<h1>Step1: Choose Your State</h1>
<center>
<form action=\"builders.php\" method=\"post\">
State: 
<select name=\"state\" onChange=\"this.form.submit();\">
<option>Choose State</option>
<option>----------------------------</option>
";

$result = mysql_query("SELECT * FROM builders ORDER BY builderstate ASC");

while($row = mysql_fetch_array($result))
  {
  echo "<option value=\"" . $row['builderstate'] . "\">" . $row['builderstate'] . "</option>";
  echo "<br />";
  }

echo "
</select>
<input type=\"hidden\" name=\"stateselected\" value=\"1\">
</form>
</center>

Code (markup):

If there are 2 builders with the same state the state will show up as 2 options. I need it to only show up once.

Thank you in advance.

 

then why u put the br in while ? why u select all table if you need just the "builderstate" column

 

I got it figured out you just have to add DISTINCT to the SELECT line:

$result = mysql_query("SELECT DISTINCT builderstate FROM builders ORDER BY builderstate ASC");