;(function($) {
 $.fn.gnbmenu = function(options) {
  options = $.extend({
   width:900,
   speed: 500,
   easing: 'easeOutCubic', 
   reset: 2000
  }, options);
  
  return this.each(function() {
   var $nav = $(this),
     $nav_gnb = $(this).find('li'),
     $gnb_img = $('.gnb_img p'),
     $current_item = $(this).find('.focus'),
     $index = 0, $focus_index = 0,
     $autoheight = $('.intro').outerHeight(),
     reset;
   $('#container').css('height',$autoheight);
   $nav_gnb.bind('mouseover focusin', function() {
    $index = $(this).index();
    clearTimeout(reset);
    $gnb_img.animate({
     left: $(this).position().left,
     width: $(this).outerWidth()
    }, {
     duration: options.speed,
     easing: options.easing,
     queue: false
    });

   })
   .bind('mouseover focusin', function() {
    reset = setTimeout(function() {
     $gnb_img.animate({
      left: $current_item.position().left,
      width: $current_item.outerWidth()     
     }, options.speed);

    }, options.reset);
   })
   .click(function(){
    $(this)
     .siblings().removeClass('focus')
     .end().addClass('focus');
    $current_item = $(this);    
    $focus_index = $(this).index();
    if($focus_index == 0){
     $('#wrap').addClass('none');
    }else{
     $('#wrap').removeClass('none');
    }
    $autoheight = $('.contents>div:eq('+ $focus_index +')').outerHeight();
    $('#container').stop().animate({'height':$autoheight},options.speed)
    $('.contents').stop().animate({'left':- options.width * $focus_index
    },options.speed,options.easing);
   })

   $('#header h1').click(function(){
    clicklink(0);
   });

   $('.int>#sol01').click(function(){
    clicklink(3);
   });
   

   
   function clicklink(a){
    $('.focus').removeClass('focus');
    if(a == 0){
     $('#wrap').addClass('none');
    }else{
     $('#wrap').removeClass('none');
    }
    $current_item = $nav.find('li:eq(' + a + ')').addClass('focus');
    $autoheight = $('.contents>div:eq(' + a + ')').outerHeight();
    $('.contents').stop().animate({'left':- options.width * a},options.speed);
    $('#container').stop().animate({'height':$autoheight},options.speed);
    clearTimeout(reset);
    reset = setTimeout(function() {
     $gnb_img.animate({
      left: $current_item.position().left,
      width: $current_item.outerWidth()     
     }, options.speed);
    }, 100);
   };
  });
 }
})(jQuery);

이 쿼리를 해상도가 1024이상일때만 (데스크탑) 실행되게 하려면 어떻게 소스를 수정해야할까요??