中文XML论坛--[求助]一个关于DOM查询的问题（急用，恳请帮助。）

本人作了一个XML程序，进行诗歌查询，不能运行。恳请各位大侠帮帮忙。

共有三个文件：
Bookstable.xsl
<DIV xmlns:xsl="http://www.w3.org/TR/WD-xsl">
  <TABLE style="table-layout:fixed" BORDER="2" CELLSPACING="2">
    <col width="300"/>
    <col width="300"/>
    <col width="100"/>
    <THEAD>
      <TH>TITLE</TH>
      <TH>AUTHOR</TH>
      <TH>PRICE</TH>
    </THEAD>
    <xsl:for-each select="book">
      <TR>
        <TD>
          <SPAN>
            <xsl:value-of select="title"/>
          </SPAN>
        </TD>
        <TD>
          <SPAN>
            <xsl:value-of select="author"/>
          </SPAN>
        </TD>
        <TD>
          <SPAN>
            <xsl:value-of select="price"/>
          </SPAN>
        </TD>
      </TR>
    </xsl:for-each>
  </TABLE>
</DIV>

bookstore.xml
<?xml version="1.0" encoding="gb2312"?>
<?xml-stylesheet type="text/xsl"href="bookstable.xsl"?>
<books>
  <book>
    <title>我愿意是急流</title>
    <author>裴多非</author>
    <price>9.00</price>
  </book>
  <book>
    <title>我需要你，只需要你</title>
    <author>泰戈尔</author>
    <price>12.00</price>
  </book>
  <book>
    <title>如果我今生无份遇到你</title>
    <author>泰戈尔</author>
    <price>8.00</price>
  </book>
  <book>
    <title>如果在爱只有痛苦</title>
    <author>泰戈尔</author>
    <price>8.00</price>
  </book>
  <book>
    <title>致爱情</title>
    <author>普拉达</author>
    <price>13.00</price>
  </book>
  <book>
    <title>致燕妮</title>
    <author>马克思</author>
    <price>12.00</price>
  </book>
  <book>
    <title>歌手的爱情－致燕妮</title>
    <author>马克思</author>
    <price>15.00</price>
  </book>
  <book>
    <title>思念</title>
    <author>马克思</author>
    <price>29.00</price>
  </book>
  <book>
    <title>致凯恩</title>
    <author>岛崎藤村</author>
    <price>15.00</price>
  </book>
  <book>
    <title>我曾经爱过你</title>
    <author>普希金</author>
    <price>15.00</price>
  </book>
  <book>
    <title>欲把心儿夹在隹笺中间</title>
    <author>鲁达基</author>
    <price>15.00</price>
  </book>
  <book>
    <title>你的离别</title>
    <author>鲁达基</author>
    <price>15.00</price>
  </book>
</books>

爱情诗歌查询.html
<HTML>
<HEAD>
<TITLE>爱情诗歌选</TITLE>
</HEAD>
<FONT FACE="verdana,arial,helvetica"SIZE=1>
</FONT><hr>
<BODY onload="WaitToFillBoxes()">
<P align="center" style="FONT-SIZE:24pt;FONT-WEIGHT:bold">爱情诗歌查询</P>
<XML id=selBooks>
</XML>

<XML id=bookSS SRC="bookstable.xsl">
</XML>
<DIV ID=selectDIVs align="center">
<SPAN style="FONT-WEIGHT:bold">按诗歌名称查询：</SPAN><SPAN ID=choices2></SPAN>
<BR>
<SPAN style="FONT-WEIGHT:bold">按作者查询：</SPAN><SPAN ID=choices3></SPAN>
</DIV>
<SCRIPT>
var retNodes;
var patternString;
function fillBoxes(){
  makeBox("title","titles",1);
  makeBox("author","authors",4);
  }

function makeBox(elementName,boxName,divIndex){
var pattern="//"+elementName;

var selNodes=booksDoc.documentElement selectNodes(pattern);

var holderNode="booksDoc.createNode(1,"holder","");

holderNode.insertBefore(selNodes.item(0).cloneNode(true),null);
  for(var j=1;j<selNodes.length;j++){
    counter=0;
    for(var k=0;k<holderNode.childNodes.length;k++){
      if(selNodes.item(j).text==holderNode.childNodes.item(k).text||selNodes.item(j).text==""){
        counter=1;
        break;
        }
      else counter=0;
      }
    if(counter==0){
      holderNode.insertBefore(selNodes.item(j).cloneNode(true),null);
      }
    }
  buildSelect(boxName,holderNode.childNodes,divIndex);
  }

function buildSelect(boxName,selNodes,divIndex){
  var str="<SELECT NAME='"+boxName+"'SIZE=1><OPTION VALUE="SELECTED>ALL";
    for<var i=0;i<selNodes.length;i++){
      str+="<OPTION VALUE='"+selNodes.item(i).text+"'>"+selNodes.item(i).text;
      }
    str+="</SELECT>";

selectDIVs.children.item(divIndex).innerHTML=str;
}

function getSamples(){

  var patternString="//book[";
  if(titles.value !="")
  patternString+="title='"+titles.value+"'";
  if(authors.value!=""){
    if(titles.value !="")
      patternString+="$and$author='"+authors.value+"'";
    else patternString+="author='"+authors.value+"'";
    }
  patternString+="]"
  if(patternString=="//book[]")
    patternString="//book";

  alert(patternString);
  var selectedNodes=booksDoc.selectNodes(patternString);
  var bookHolder=booksDoc.createNode(1,"books","");
  for(var n=0;n<selectedNodes.length;n++)
    bookHolder.inserBefore(selectedNodes.item(n).cloneNode(true),null);

insertTable.innerHTML=bookHolder.transformNode(bookSS.documentElement);
}

function getState(){
  if(booksDoc.readyState=="complete")
    fillBoxes();
  }

function WaitToFillBoxes(){
  window.status="waiting...";
  if(booksDoc.readyState!="complete")
    window.setTimeout("WaitToFillBoxes()",100);
  if(bookSS.readyState!="complete")
    window.setTimeout("WaitToFillBoxes()",100);
  windos.status="OK!!!";
  fillBoxes();
}
</SCRIPT>


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