var addr1 = "inf";
var addr4 = "dk";
var addr3 = "zer.";
var addr2 = "o@e";
var maila = addr1+addr2+addr3+addr4;
var string6 = "</a>";
var string1 = "E";
var string4 = "ilto:";
var string2 = "-ma";
var string3 = "il: <a href=\"ma";
var string5 = "\">";

document.write(string1+string2+string3+string4+maila+string5+maila+string6);