hchars="0123456789ABCDEF";function show_my_mail(txt){ x=0; the_output=""; while (x<txt.length)  {   m=txt.charAt(x);   m=m.toUpperCase();   m=hchars.indexOf(m,0);   t=txt.charAt(x+1);   t=t.toUpperCase();   t=hchars.indexOf(t,0);   if (m<0 || t<0) {x++;continue; }   m=Math.floor(m*16 + t);   the_output+=String.fromCharCode(m);   x=x+2;  }document.write(the_output);}