this is my toc.ncx file
<?xml version="1.0" encoding="UTF-8"?>
<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" version="2005-1" xml:lang="en">
<head xmlns:ncx="http://www.daisy.org/z3986/2005/ncx/">
<meta name="dtb:uid" content="http://www.snee.com/epub/pg23436"/>
<meta name="dtb:depth" content="1"/>
<meta name="dtb:totalPageCount" content="0"/>
<meta name="dtb:maxPageNumber" content="0"/>
</head>
<docTitle xmlns:ncx="http://www.daisy.org/z3986/2005/ncx/">
<text>Aladdin or The Wonderful Lamp</text>
</docTitle>
<navMap xmlns:ncx="http://www.daisy.org/z3986/2005/ncx/">
<navPoint id="navpoint-1" playOrder="1">
<navLabel>
<text>Aladdin or The Wonderful Lamp</text>
</navLabel>
<content src="23436-h.htm"/>
</navPoint>
</navMap>
</ncx>
how to get node value of text using javascript?