function secret(nr) {
switch (nr) {
   case 1: var array=[98,105,117,114,111,64,107,97,122,105,107,105,46,112,108]; break; //biu
   default: var array=[98,105,117,114,111,64,107,97,122,105,107,105,46,112,108]; break; //biu
}
var encrypted='' 
for (var i=0; i<array.length; i++)
encrypted+=String.fromCharCode(array[i])
document.write('<a href="mailto:'+encrypted+'">'+encrypted+'</a>')
}