function menu(a) {
if(a==00) location.href='index.html';
if(a==01) location.href='sitemap.html';
if(a==02) location.href='english.html';
if(a==03) window.open('http://www.seescafe.com ',''); 
if(a==04) location.href='#';
if(a==05) location.href='sub02_01.html';
if(a==06) window.open('http://www.seescafe.com ',''); 
}