[xml] Html from Libxml2 Versus Html from Web browser

[Brian Kim]

Hi. all.

I realized that For the same URL, html data from libxml2 and
webbrowser(firefox) is different to each other.

It is
http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Daps&field-keywords=garmin+gps&x=0&y=0

Here is two partial html data, which represent the same part.

1. From WebBrowser(FireFox)

<div class="productTitle">*<a href="
http://www.amazon.com/Garmin-255W-4-3-Inch-Widescreen-Navigator/dp/B0015EWMX8/ref=sr_1_1?ie=UTF8&s=electronics&qid=1249401054&sr=8-1";>
Garmin nüvi 255W 4.3-Inch Widescreen Portable GPS Navigator</a> <span
class="ptBrand">by Garmin</span>*</div>
<div class="newPrice"><a href="
http://www.amazon.com/Garmin-255W-4-3-Inch-Widescreen-Navigator/dp/B0015EWMX8/ref=sr_1_1?ie=UTF8&s=electronics&qid=1249401054&sr=8-1";>Buy
new</a>:&nbsp;<strike>$329.99</strike> <span>$170.94</span></div>
<div class="usedPrice"><a href="
http://www.amazon.com/gp/offer-listing/B0015EWMX8/ref=sr_1_olp_1?ie=UTF8&s=electronics&qid=1249401054&sr=8-1";>73
Used &amp; new</a> from <span>$139.00</span></div>

2.From Libxml2

<table class="n2" border="0" cellpadding="0" cellspacing="0"
width="100%"><tr>
<td class="imageColumn" width="123"><table border="0" cellpadding="0"
cellspacing="0"><tr>
<td align="center" width="115"><a href="
http://www.amazon.com/Garmin-255W-4-3-Inch-Widescreen-Navigator/dp/B0015EWMX8/ref=sr_1_1/176-1451973-2375105?ie=UTF8&amp;qid=1249400810&amp;sr=8-1";>
<img src="
http://ecx.images-amazon.com/images/I/21IKwg51IyL._SL160_AA115_.jpg";
class="" border="0" alt="Product Details" width="115" height="115"></a></td>
<td width="8"></td></tr></table></td>
<td class="dataColumn"><table cellpadding="0" cellspacing="0" border="0">
<tr><td>
*<a href="
http://www.amazon.com/Garmin-255W-4-3-Inch-Widescreen-Navigator/dp/B0015EWMX8/ref=sr_1_1/176-1451973-2375105?ie=UTF8&amp;qid=1249400810&amp;sr=8-1";><span
class="srTitle">Garmin nüvi 255W 4.3-Inch Widescreen Portable GPS
Navigator</span></a>by Garmin</td></tr>*
<tr><td class="priceBlockWithTopPadding">
<span class="priceType"><a href="
http://www.amazon.com/Garmin-255W-4-3-Inch-Widescreen-Navigator/dp/B0015EWMX8/ref=sr_1_1/176-1451973-2375105?ie=UTF8&amp;qid=1249400810&amp;sr=8-1";>Buy
new</a>:</span> <span class="listprice">$329.99</span> <span
class="saleprice">$170.94</span>    <span class="usedAndNewPriceBlock"><span
class="priceType">
<a href="
http://www.amazon.com/gp/offer-listing/B0015EWMX8/ref=sr_1_olp_1/176-1451973-2375105?ie=UTF8&amp;qid=1249400810&amp;sr=8-1";>73
Used &amp; new</a>from <span
class="otherprice">$139.00</span></span></span></td></tr>


"*Garmin nüvi 255W 4.3-Inch Widescreen Portable GPS Navigator"*, is an
anchor text of the tag, "a" from 1, but it is an anchor text of the tag,
"span" from 2.

Where does this difference come from? Why was the association between tag
and anchor text changed?

Does anybody answer to this question?

Thanks.

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