function go3(){
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document.write('<form name="selecter3"><select name="select3" size=1 onchange="go3()">');
document.write('<option value=none>Select Detailed Shark Description');
document.write('<option value=none>--------------------');
document.write('<option value="http://sharkgallery.netfirms.com/descript/classification.html">- Scientific Classification');
document.write('<option value="http://sharkgallery.netfirms.com/descript/habitat.html">- Habitat and Distribution');
document.write('<option value="http://sharkgallery.netfirms.com/descript/physical.html">- Physical Characteristics');
document.write('<option value="http://sharkgallery.netfirms.com/descript/senses.html">- Senses');
document.write('<option value="http://sharkgallery.netfirms.com/descript/behavior.html">- Behavior');
document.write('<option value="http://sharkgallery.netfirms.com/descript/diet.html">- Diet and Eating Habits');
document.write('<option value="http://sharkgallery.netfirms.com/descript/reproduction.html">- Reproduction');
document.write('<option value="http://sharkgallery.netfirms.com/descript/anatomy.html">- Anatomy and Physiology');
document.write('<option value="http://sharkgallery.netfirms.com/descript/hydro.html">- Hydrodynamics');
document.write('<option value="http://sharkgallery.netfirms.com/descript/longevity.html">- Longevity and Causes of Death');
document.write('<option value="http://sharkgallery.netfirms.com/descript/appendix.html">- Appendix: Classification');
document.write('</select>');
document.write('</form>');