function gnavi_idx() {
document.write('<ul id="globalNav">');
document.write('<li><a href="http://www.yamauchi-dds.com/"><img src="images/navi_01_off.jpg" alt="" /></a></li>');
document.write('<li><a href="doctor.html"><img src="images/navi_02_off.jpg" alt="" /></a></li>');
document.write('<li><a href="clinic.html"><img src="images/navi_03_off.jpg" alt="" /></a></li>');
document.write('<li><a href="access.html"><img src="images/navi_04_off.jpg" alt="" /></a></li>');
document.write('</ul>');
}