var ulo = String.fromCharCode(109,97,105,108,116,111,58);
var pangalan = "chosa";
var hulingpangalan = "dentsu-ikueikai.or.jp";
var tirahan = pangalan + "@" + hulingpangalan;
document.write('<a href="'+ulo+''+tirahan+'">',
'&#99;&#104;osa&#64;&#100;&#101;&#110;&#116;s&#117;&#45;ik&#117;&#101;&#105;&#107;&#97;i&#46;&#111;&#114;.j&#112;',
'<\/a>');