jQuery.fn.dimer = function(f) {
	if (f == 'close')
	{
		$(this).find(".dimer").remove();
		$(this).find(".dimer_img").remove();
		return this;
	}
	
	return this.each(function(){
		  jQuery('<div class="dimer"></div>').css({
	          background: '#000'
	          ,height: $(this).innerHeight() + 'px'
	          ,opacity: 0
	          ,position: 'absolute'
	          ,width: $(this).innerWidth() + 'px'
	          ,zIndex: 999,
	          textAlign: 'center'
	      }).prependTo(this).fadeTo(100, 0.05);
			  
		  var top = ($(this).innerHeight()-32)/2;
		  if(top > 150)
		  	top = 150;
			  
		  jQuery('<img src="http://www.butysportowe.net/cms/datastore/images/layout/loading.gif" alt="" class="dimer_img"/>').css({
	          position: 'absolute'
	          ,marginLeft:($(this).innerWidth()-32)/2 + 'px'
	          ,marginTop: top + 'px'
	          ,zIndex: 1000
	          ,opacity:1
	      }).prependTo(this);

	  });
	};