/*
son of suckerfish menu script from:
http://www.htmldog.com/articles/suckerfish/dropdowns/
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function jump(page)
{
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function toggle_image(target,img1,img2)
{
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/*Should shorten page length by putting the top tree in 1 common file.*/
function topnav()
{
document.write('<li class="first"><a href="index.html">Home</a></li>');
document.write('<li><a href="#">By Chapter</a>');
document.write('<ul>');
document.write('<li class="first"><a href="#">I Introduction</a>');
document.write('<ul>');
document.write('<li><a href="chapter01.html">1. An Overview of Cells and Cell Research</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations01.html">Animations</a></li>');
document.write('<li><a href="quizzes01.html">Quiz</a></li>');
document.write('<li><a href="problems01.html">Problems</a></li>');
document.write('<li><a href="micrographs01.html">Micrographs</a></li>');
document.write('<li><a href="videos01.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks01.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter02.html">2. The Composition of Cells</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations02.html">Animations</a></li>');
document.write('<li><a href="quizzes02.html">Quiz</a></li>');
document.write('<li><a href="problems02.html">Problems</a></li>');
document.write('<li><a href="micrographs02.html">Micrographs</a></li>');
document.write('<li><a href="videos01.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks02.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter03.html">3. Cell Metabolism</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations03.html">Animations</a></li>');
document.write('<li><a href="quizzes03.html">Quiz</a></li>');
document.write('<li><a href="problems03.html">Problems</a></li>');
document.write('<li><a href="micrographs03.html">Micrographs</a></li>');
document.write('<li><a href="videos03.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks03.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li class="last"><a href="chapter04.html">4. Fundamentals of Molecular Biology</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations04.html">Animations</a></li>');
document.write('<li><a href="quizzes04.html">Quiz</a></li>');
document.write('<li><a href="problems04.html">Problems</a></li>');
document.write('<li><a href="micrographs04.html">Micrographs</a></li>');
document.write('<li><a href="videos04.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks04.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="#">II The Flow of Genetic Information</a>');
document.write('<ul>');
document.write('<li><a href="chapter05.html">5. The Organization and Sequences of Cellular Genomes</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations05.html">Animations</a></li>');
document.write('<li><a href="quizzes05.html">Quiz</a></li>');
document.write('<li><a href="problems05.html">Problems</a></li>');
document.write('<li><a href="micrographs05.html">Micrographs</a></li>');
document.write('<li><a href="videos05.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks05.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter06.html">6: Replication, Maintenance and Rearrangements of Genomic DNA</a>');
document.write('');
document.write('<ul>');
document.write('<li class="first"><a href="animations06.html">Animations</a></li>');
document.write('<li><a href="quizzes06.html">Quiz</a></li>');
document.write('<li><a href="problems06.html">Problems</a></li>');
document.write('<li><a href="micrographs06.html">Micrographs</a></li>');
document.write('<li><a href="videos06.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks06.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter07.html">7. RNA Synthesis and Processing</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations07.html">Animations</a></li>');
document.write('<li><a href="quizzes07.html">Quiz</a></li>');
document.write('<li><a href="problems07.html">Problems</a></li>');
document.write('<li><a href="micrographs07.html">Micrographs</a></li>');
document.write('<li><a href="videos07.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks07.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li class="last"><a href="chapter08.html">8. Protein Synthesis, Processing, and Regulation</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations08.html">Animations</a></li>');
document.write('<li><a href="quizzes08.html">Quiz</a></li>');
document.write('<li><a href="problems08.html">Problems</a></li>');
document.write('<li><a href="micrographs08.html">Micrographs</a></li>');
document.write('<li><a href="videos08.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks08.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="#">III Cell Structure and Function</a>');
document.write('<ul>');
document.write('<li><a href="chapter09.html">9. The Nucleus</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations09.html">Animations</a></li>');
document.write('<li><a href="quizzes09.html">Quiz</a></li>');
document.write('<li><a href="problems09.html">Problems</a></li>');
document.write('<li><a href="micrographs09.html">Micrographs</a></li>');
document.write('<li><a href="videos09.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks09.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter10.html">10. Protein Sorting and Transport</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations10.html">Animations</a></li>');
document.write('<li><a href="quizzes10.html">Quiz</a></li>');
document.write('<li><a href="problems10.html">Problems</a></li>');
document.write('<li><a href="micrographs10.html">Micrographs</a></li>');
document.write('<li><a href="videos10.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks10.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter11.html">11. Bioenergetics and Metabolism</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations11.html">Animations</a></li>');
document.write('<li><a href="quizzes11.html">Quiz</a></li>');
document.write('<li><a href="problems11.html">Problems</a></li>');
document.write('<li><a href="micrographs11.html">Micrographs</a></li>');
document.write('<li><a href="videos11.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks11.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter12.html">12. The Cytoskeleton</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations12.html">Animations</a></li>');
document.write('<li><a href="quizzes12.html">Quiz</a></li>');
document.write('<li><a href="problems12.html">Problems</a></li>');
document.write('<li><a href="micrographs12.html">Micrographs</a></li>');
document.write('<li><a href="videos12.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks12.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter13.html">13. The Plasma Membrane</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations13.html">Animations</a></li>');
document.write('<li><a href="quizzes13.html">Quiz</a></li>');
document.write('<li><a href="problems13.html">Problems</a></li>');
document.write('<li><a href="micrographs13.html">Micrographs</a></li>');
document.write('<li><a href="videos13.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks13.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li class="last"><a href="chapter14.html">14. Cell Walls and the Extracellular Matrix</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations14.html">Animations</a></li>');
document.write('<li><a href="quizzes14.html">Quiz</a></li>');
document.write('<li><a href="problems14.html">Problems</a></li>');
document.write('<li><a href="micrographs14.html">Micrographs</a></li>');
document.write('<li><a href="videos14.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks14.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('</ul>');
document.write('</li>');
document.write('<li class="last"><a href="#">IV Cell Regulation</a>');
document.write('<ul>');
document.write('<li><a href="chapter15.html">15. Cell Signaling</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations15.html">Animations</a></li>');
document.write('<li><a href="quizzes15.html">Quiz</a></li>');
document.write('<li><a href="problems15.html">Problems</a></li>');
document.write('<li><a href="micrographs15.html">Micrographs</a></li>');
document.write('<li><a href="videos15.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks15.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter16.html">16. The Cell Cycle</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations16.html">Animations</a></li>');
document.write('<li><a href="quizzes16.html">Quiz</a></li>');
document.write('<li><a href="problems16.html">Problems</a></li>');
document.write('<li><a href="micrographs16.html">Micrographs</a></li>');
document.write('<li><a href="videos16.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks16.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="chapter17.html">17. Cell Death and Cell Renewal</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations17.html">Animations</a></li>');
document.write('<li><a href="quizzes17.html">Quiz</a></li>');
document.write('<li><a href="problems17.html">Problems</a></li>');
document.write('<li><a href="micrographs17.html">Micrographs</a></li>');
document.write('<li><a href="videos17.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks17.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li class="last"><a href="chapter18.html">18. Cancer</a>');
document.write('<ul>');
document.write('<li class="first"><a href="animations18.html">Animations</a></li>');
document.write('<li><a href="quizzes18.html">Quiz</a></li>');
document.write('<li><a href="problems18.html">Problems</a></li>');
document.write('<li><a href="micrographs18.html">Micrographs</a></li>');
document.write('<li><a href="videos18.html">Videos</a></li>');
document.write('<li class="last"><a href="weblinks18.html">Weblinks</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('');
document.write('</ul>');
document.write('</li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="#">By Resource</a>');
document.write('<ul>');
document.write('');
document.write('<li class="first"><a href="#">Animations</a>');
document.write('<ul>');
document.write('<li class="first"><a href="#">I Introduction</a>');
document.write('');
document.write('<ul>');
document.write('<li><a href="animations01.html">1. An Overview of Cells and Cell Research</a></li>');
document.write('<li><a href="animations02.html">2. The Composition of Cells</a></li>');
document.write('<li><a href="animations03.html">3. Cell Metabolism</a></li>');
document.write('<li class="last"><a href="animations04.html">4. Fundamentals of Molecular Biology</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('');
document.write('<li><a href="#">II The Flow of Genetic Information</a>');
document.write('<ul>');
document.write('<li><a href="animations05.html">5. The Organization and Sequences of Cellular Genomes</a></li>');
document.write('<li><a href="animations06.html">6: Replication, Maintenance and Rearrangements of Genomic DNA</a></li>');
document.write('<li><a href="animations07.html">7. RNA Synthesis and Processing</a></li>');
document.write('<li class="last"><a href="animations08.html">8. Protein Synthesis, Processing, and Regulation</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('');
document.write('<li><a href="#">III Cell Structure and Function</a>');
document.write('<ul>');
document.write('<li><a href="animations09.html">9. The Nucleus</a></li>');
document.write('<li><a href="animations10.html">10. Protein Sorting and Transport</a></li>');
document.write('<li><a href="animations11.html">11. Bioenergetics and Metabolism</a></li>');
document.write('<li><a href="animations12.html">12. The Cytoskeleton</a></li>');
document.write('<li><a href="animations13.html">13. The Plasma Membrane</a></li>');
document.write('<li class="last"><a href="animations14.html">14. Cell Walls and the Extracellular Matrix</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li class="last"><a href="#">IV Cell Regulation</a>');
document.write('<ul>');
document.write('<li><a href="animations15.html">15. Cell Signaling</a></li>');
document.write('<li><a href="animations16.html">16. The Cell Cycle</a></li>');
document.write('<li><a href="animations17.html">17. Cell Death and Cell Renewal</a></li>');
document.write('<li class="last"><a href="animations18.html">18. Cancer</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="#">Quiz</a>');
document.write('<ul>');
document.write('<li class="first"><a href="#">I Introduction</a>');
document.write('<ul>');
document.write('<li><a href="quizzes01.html">1. An Overview of Cells and Cell Research</a></li>');
document.write('<li><a href="quizzes02.html">2. The Composition of Cells</a></li>');
document.write('<li><a href="quizzes03.html">3. Cell Metabolism</a></li>');
document.write('<li class="last"><a href="quizzes04.html">4. Fundamentals of Molecular Biology</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('');
document.write('<li><a href="#">II The Flow of Genetic Information</a>');
document.write('<ul>');
document.write('<li><a href="quizzes05.html">5. The Organization and Sequences of Cellular Genomes</a></li>');
document.write('<li><a href="quizzes06.html">6: Replication, Maintenance and Rearrangements of Genomic DNA</a></li>');
document.write('<li><a href="quizzes07.html">7. RNA Synthesis and Processing</a></li>');
document.write('<li class="last"><a href="quizzes08.html">8. Protein Synthesis, Processing, and Regulation</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('');
document.write('<li><a href="#">III Cell Structure and Function</a>');
document.write('<ul>');
document.write('<li><a href="quizzes09.html">9. The Nucleus</a></li>');
document.write('<li><a href="quizzes10.html">10. Protein Sorting and Transport</a></li>');
document.write('<li><a href="quizzes11.html">11. Bioenergetics and Metabolism</a></li>');
document.write('<li><a href="quizzes12.html">12. The Cytoskeleton</a></li>');
document.write('<li><a href="quizzes13.html">13. The Plasma Membrane</a></li>');
document.write('<li class="last"><a href="quizzes14.html">14. Cell Walls and the Extracellular Matrix</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li class="last"><a href="#">IV Cell Regulation</a>');
document.write('<ul>');
document.write('<li><a href="quizzes15.html">15. Cell Signaling</a></li>');
document.write('<li><a href="quizzes16.html">16. The Cell Cycle</a></li>');
document.write('<li><a href="quizzes17.html">17. Cell Death and Cell Renewal</a></li>');
document.write('<li class="last"><a href="quizzes18.html">18. Cancer</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="#">Problems</a>');
document.write('<ul>');
document.write('<li class="first"><a href="#">I Introduction</a>');
document.write('');
document.write('<ul>');
document.write('<li><a href="problems01.html">1. An Overview of Cells and Cell Research</a></li>');
document.write('<li><a href="problems02.html">2. The Composition of Cells</a></li>');
document.write('<li><a href="problems03.html">3. Cell Metabolism</a></li>');
document.write('<li class="last"><a href="problems04.html">4. Fundamentals of Molecular Biology</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="#">II The Flow of Genetic Information</a>');
document.write('<ul>');
document.write('<li><a href="problems05.html">5. The Organization and Sequences of Cellular Genomes</a></li>');
document.write('<li><a href="problems06.html">6: Replication, Maintenance and Rearrangements of Genomic DNA</a></li>');
document.write('<li><a href="problems07.html">7. RNA Synthesis and Processing</a></li>');
document.write('<li class="last"><a href="problems08.html">8. Protein Synthesis, Processing, and Regulation</a></li>');
document.write('</ul>');
document.write('</li>');
document.write('<li><a href="#">III Cell Structure and Function</a>');
document.write('<ul>');
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document.write('<li class="last"><a href="#">IV Cell Regulation</a>');
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document.write('<li><a href="#">Micrographs</a>');
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document.write('<li><a href="micrographs01.html">1. An Overview of Cells and Cell Research</a></li>');
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document.write('<li><a href="#">II The Flow of Genetic Information</a>');
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document.write('<li><a href="micrographs05.html">5. The Organization and Sequences of Cellular Genomes</a></li>');
document.write('<li><a href="micrographs06.html">6: Replication, Maintenance and Rearrangements of Genomic DNA</a></li>');
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document.write('<li class="last"><a href="#">IV Cell Regulation</a>');
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document.write('<li><a href="#">Videos</a>');
document.write('<ul>');
document.write('<li class="first"><a href="#">I Introduction</a>');
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document.write('<li><a href="videos01.html">1. An Overview of Cells and Cell Research</a></li>');
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document.write('<li class="last"><a href="#">IV Cell Regulation</a>');
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document.write('<li><a href="weblinks01.html">1. An Overview of Cells and Cell Research</a></li>');
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