function chr(n) {return String.fromCharCode(n);}
function emailhide_show(code,enc_email,enc_text)
{
 plain_email = '';
 for (i=0;i<enc_email.length;i++) {plain_email = chr(enc_email.charCodeAt(i)-i)+plain_email;}
 plain_text = '';
 for (i=0;i<enc_text.length;i++) {plain_text = chr(enc_text.charCodeAt(i)-i)+plain_text;}
 layer('emailhide_'+code).write('<a href="mailto:'+plain_email+'">'+(plain_text.length>0?plain_text:plain_email)+'</a>');
}