function addLoadEvent(fnc){

  if ( typeof window.addEventListener != "undefined" )

    window.addEventListener( "load", fnc, false );

  else if ( typeof window.attachEvent != "undefined" ) {

    window.attachEvent( "onload", fnc );

  }

  else {

    if ( window.onload != null ) {

      var oldOnload = window.onload;

      window.onload = function ( e ) {

        oldOnload( e );

        window[fnc]();

      };

    }

    else

      window.onload = fnc;

  }

}