怎么才能采集到这种放大图片

yekey3210

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<div id="productMainImage" class="centeredContent back">
<script language="javascript" type="text/javascript"><!--
document.write('<a href="javascript:popupWindow(\'http://www.laptopstoy.com/index.php?main_page=popup_image&amp;pID=4334\')"><img src="bmz_cache/0/066db79fb4bab64c481ebe929930706a.image.195x195.jpg" alt="R4 SDHC Card for DS + 2GB Micro SD Memory Card" title=" R4 SDHC Card for DS + 2GB Micro SD Memory Card " width="195" height="195" /><br /><span class="imgLink">larger image</span></a>');
//--></script>
<noscript>
<a  target="_blank"><img src="bmz_cache/0/066db79fb4bab64c481ebe929930706a.image.195x195.jpg" alt="R4 SDHC Card for DS + 2GB Micro SD Memory Card" title=" R4 SDHC Card for DS + 2GB Micro SD Memory Card " width="195" height="195" /><br /><span class="imgLink">larger image</span></a></noscript>
</div><!--eof Main Product Image-->

要采集到产品的larger image,怎么写规则?请高人指点. 谢谢!