Here we mentioned about Browse By Price in the left nav. Price option incremented multiples of 1000
<?php
$minPrice = Mage::getSingleton('catalog/layer')->setCurrentCategory(Mage::registry('current_category'))->getProductCollection()->getMinPrice();
$maxPrice = Mage::getSingleton('catalog/layer')->setCurrentCategory(Mage::registry('current_category'))->getProductCollection()->getMaxPrice();
if($maxPrice>0)
{
?>
<dl id="narrow-by-list">
<dt>Browse By Price</dt>
<dd>
<ol class="m-filter-item-list ">
<?php
$incp=1;
for($pi = $minPrice; $pi <= $maxPrice; $pi++)
{
if($incp>1)
{
$minPrice = ($incp-1)*1000;
$pi = $incp*1000;
echo '<li><a href="'.$this->getUrl('catalogsearch/result/').'?q=a&price='.$incp.'%2C1000&search=cateinfo" title="$'.$minPrice.' - $'.$pi.'">$'.$minPrice.' - $'.$pi.'</a></li>';
}
else
{
$pi = $incp*1000;
echo '<li><a href="'.$this->getUrl('catalogsearch/result/').'?q=a&price=1%2C1000&search=cateinfo" title="$0 - $'.$pi.'">$0 - $'.$pi.'</a></li>';
}
$incp++;
}
?>
</ol>
</dd>
</dl>
<hr/>
<?php } ?>