var str='';
str += '<ul>';
str += '<li><a href="products.html" class="products">Products</a></li>';
str += '<li><a href="education_center.html" class="education">Education Center</a></li>';
str += '<li><a href="corporate.html" class="corporate">Corporate</a></li>';
str += '<li><a href="contact_us.html" class="contact">Contact Us</a></li>';
str += '</ul>';
document.write(str)