search not working

[boyfromoz]

Site I designed is here

http://www.michaelmaxwell.com.au

The properties page has a form that allows for searching on the properties. For some reason, it seems to crash sometimes. Then I refresh the apge, and it works fine. Can not figure it out

Here is the code for the form

<form name=&quot;proform&quot; action=&quot;properties.php&quot; method=&quot;post&quot;>
<table border=&quot;0&quot; align=&quot;center&quot; cellpadding=&quot;2&quot; cellspacing=&quot;2&quot;>
<tr>
<td align=&quot;left&quot;>
<select name=&quot;s_type&quot; class=&quot;width&quot;>
<option value=&quot;-1&quot; selected>Choose Property Type </option>
<?php
$pro1 = new propertytype();
$pro_urb = $pro1->getPropertyType();
while($r1 = mysql_fetch_object($pro_urb))
{
?>
<option <?php if($_POST['s_type']==($r1->id)){ echo &quot; selected &quot; ;}?> value=<?php echo($r1->id);?>> <?php echo($r1->types);?> </option>
<?php
}
?>
</select>
</td>
</tr>
<tr>
<td align=&quot;left&quot;>
<select name=&quot;s_suburb&quot; class=&quot;width&quot;>
<option value=&quot;-1&quot; selected>Choose Area </option>
<?php
$sub = new suburb();
$sub_urb = $sub->getSuburb();
while($r1 = mysql_fetch_object($sub_urb))
{
?>
<option <?php if($_POST['s_suburb']==($r1->id)){echo &quot; selected &quot; ;}?> value=<?php echo($r1->id);?>> <?php echo($r1->sub);?> </option>
<?php
}
?>
</select>
</td>
</tr>
<tr>
<td align=&quot;left&quot;>
<select name=s_pricerange1 class=&quot;width&quot;>
<option value=&quot;-1&quot; selected>Price Levels </option>
<option <?php if($_POST['s_pricerange1']==1) {echo &quot; selected &quot; ;}?>value=&quot;1&quot;>Under
$250,000 </option>
<option <?php if($_POST['s_pricerange1']==2){ echo &quot; selected &quot; ;}?>value=&quot;2&quot;>$250,000-$500,000 </option>
<option <?php if($_POST['s_pricerange1']==3){ echo &quot; selected &quot; ;}?>value=&quot;3&quot;>$500,000-$750,000 </option>
<option <?php if($_POST['s_pricerange1']==4){ echo &quot; selected &quot; ;}?>value=&quot;4&quot;>$750,000-$1,000,000 </option>
<option <?php if($_POST['s_pricerange1']==5){ echo &quot; selected &quot; ;}?>value=&quot;5&quot;>$1,000,000
+ </option>
</select>
</td>
</tr>
<tr>
<td align=&quot;left&quot;>
<select name=s_status class=&quot;width&quot;>
<option value=&quot;-1&quot; selected>Choose status </option>
<option <?php if($_POST['s_status']==1) {echo &quot; selected &quot; ;}?>value=&quot;1&quot;>For
Sale </option>
<option <?php if($_POST['s_status']==2) {echo &quot; selected &quot; ;}?>value=&quot;2&quot;>For
Sale - Auction </option>
<option <?php if($_POST['s_status']==3) {echo &quot; selected &quot; ;}?>value=&quot;3&quot;>Under
Contract </option>
<option <?php if($_POST['s_status']==4) {echo &quot; selected &quot; ;}?>value=&quot;4&quot;>Sold </option>
</select>
</td>
</tr>
<tr>
<td align=&quot;left&quot;>
<select name=&quot;s_order&quot; class=&quot;width&quot;>
<option value=&quot;0&quot; selected>Display Order </option>
<option <?php if($_POST['s_order']==1) {echo &quot; selected &quot; ;}?>value=&quot;1&quot;>By
Suburb </option>
<option <?php if($_POST['s_order']==2) {echo &quot; selected &quot; ;}?>value=&quot;2&quot;>By
Most recent Listing </option>
<option <?php if($_POST['s_order']==3) {echo &quot; selected &quot; ;}?>value=&quot;3&quot;>By
Price (Lowest First) </option>
<option<?php if($_POST['s_order']==4) {echo &quot; selected &quot; ;}?> value=&quot;4&quot;>By
Price (Highest First) </option>
</select>
</td>
</tr>
<tr>
<td width=&quot;150&quot; align=&quot;left&quot;><div align=&quot;center&quot;>
<input type=&quot;hidden&quot; name=&quot;Submit2&quot;>

<input type=&quot;button&quot; value=&quot;Submit&quot; onclick=&quot;send()&quot;>

</div>
</td>
</tr>
</table>
</form>


I can supply code for whole apge if necessary.


Can anyone spot whatis wrong?