symm

String.prototype.replaceAt=function(index, char ) { return this.substr(0, index) + char + this.substr(index+char.length); }
String.prototype.replace2At=function(index, char1, char2 ) { return this.substr(0, index) + char1 + char2 + this.substr(index+char1.length+char2.length); }

function scram29c3run() { 
  var elem = document.getElementById( 'header-29c3-scramble' );
  if ( elem ) { var scram = new scram29c3( elem ); scram.run(); } else
  { setTimeout( scram29c3run, 500 ); }
  elem = document.getElementById( 'header-29c3-scramble2' );
  if ( elem ) { var scram = new scram29c3( elem ); scram.run(); }
}