[jQuery] Selector Efficiency?

[jQuery] Selector Efficiency?

So... a question regarding selector efficiency.<div>
</div><div>The following snippet of HTML describes attributes associated with a polygon in an KML.  Its basically a table of data, contained as <span>s in <li>s in a <ul>.  Given this snippet, what would be the best (fastest) way to return the values of MAP_ID and SITE_ADDRESS</div>
<div>
</div><div>foo = "<span class="Apple-style-span" style="font-style: italic; "><h4>GISDATA.ASSESSPARNC_POLY_PUBLIC</h4></span>
</div><div><div><span class="Apple-style-span" style="font-style: italic;">
</span></div><div><span class="Apple-style-span" style="font-style: italic;"><ul class="textattributes"></span></div><div><span class="Apple-style-span" style="font-style: italic;">  <li><strong><span class="atr-name">MAP_ID</span>:</strong> <span class="atr-value">16-27</span></li></span></div>
<div><span class="Apple-style-span" style="font-style: italic;">  <li><strong><span class="atr-name">SITE_ADDRESS</span>:</strong> <span class="atr-value">396 Main St</span></li></span></div>
<div><span class="Apple-style-span" style="font-style: italic;">  <li><strong><span class="atr-name">SITE_OTHER_FIELD</span>:</strong> <span class="atr-value">Grat Data</span></li>
</span></div><div><span class="Apple-style-span" style="font-style: italic;">  <li><strong><span class="atr-name">USE_CODE</span>:</strong> <span class="atr-value">101</span></li></span></div>
<div><span class="Apple-style-span" style="font-style: italic;">  <li><strong><span class="atr-name">TOWN_ID</span>:</strong> <span class="atr-value">116</span></li></span></div>
<div><span class="Apple-style-span" style="font-style: italic;">  <li><strong><span class="atr-name">WARREN_GROUP_05_MAP_ID</span>:</strong> <span class="atr-value">M:0016  B:0000  L:0027</span></li></span></div>
<div><span class="Apple-style-span" style="font-style: italic;">  <li><strong><span class="atr-name">ACRES</span>:</strong> <span class="atr-value">0.67102373655</span></li></span></div>
<div><span class="Apple-style-span" style="font-style: italic;">  </span></div><div><span class="Apple-style-span" style="font-style: italic;"></ul>"</span></div><div><span class="Apple-style-span" style="font-style: italic;">
</span></div><div><span class="Apple-style-span" style="font-style: italic;">
</span></div><div><span class="Apple-style-span" style="font-style: italic;"><span class="Apple-style-span" style="font-style: normal; "><div>
The following works 
</div><div><span class="Apple-style-span" style="font-style: italic; ">parcelOutput = 'Parcel ID:  ' + jQuery(foo).find('li:contains("MAP_")').not('li:contains("WARREN_GROUP")').children('.atr-value').text() + '
' + 'Address:  ' + jQuery(foo).find('li:contains("SITE_ADDRESS")').children('.atr-value').text();</span></div>
<div><span class="Apple-style-span" style="font-style: italic;">
</span></div><div>Is there a better/more efficient way to return these values?</div><div>
</div><div>Thanks!</div></span></span></div></div>