BLG.setResolution = function(main_wrapper, central_area, menu_el_number) {
  //var r = screen.width;
  //var r = 1024;
  /*if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    var r = window.innerWidth;
    var y = window.innerHeight;     
  } else {
    //IE 6+ in 'standards compliant mode'
    var r = document.body.clientWidth;
    var y = document.body.clientHeight;    
  }*/
  
  var r = $(window).width();
  var y = $(window).height();
  
  //BLACK SQUARE - centrowanie
  var bs = $('.black_square_wrapper');  
  bs.css('top',(y/2)-35);
  bs.css('left',(r/2)-35);
  bs.css('display','block');
  
  main_wrapper.css('width',r);
  central_area.css('background-image','url("images/bg_main_area_'+menu_el_number+'_'+r+'.jpg")');
  central_area.css('background-repeat','no-repeat');
  
  
  //FOOTER_GLUED
  //var footer = $('.footer_glued');
  //footer.css('top',y-24+'px');  
  
  /* Proporcje skalowanego obrazka */
  /* 1024px - 407px */
  var proportions = 1024/373;
  var scalable_height = r/proportions;
  //$('.main_area').css('height',scalable_height+'px');
  
  
  //90px wysokość ponad main_area
  //24px wysokość footera
  //90+24 = 114
  var w_height = window.innerHeight - 103;
  $('.main_area').css('height',w_height+'px');
  
  
  if(r<1024) $('body').css('overflow-x','auto').css('overflow-y','auto');
    
 
  
    
}