(function($){
$.closePopup = function(options){
	var defaults = {
			closeElem: '.popup'
	};
	var options = $.extend(defaults,options);
  $('#mask').add(options.closeElem).hide();
  $('body, #mask').css('height','auto');
  $('#twC').attr('checked','');
 };

$.calcTopPosition = function(options){
  var defaults = {
    className: '.popup',
    top: null
    };
  var options = $.extend(defaults,options);
  var winH = $(window).height();
  var pTop = null == options.top ? Math.max(10 + $(window).scrollTop(),winH/2 - $(options.className).height()/2 + $(window).scrollTop()) : top;
	$(options.className).css({
		'top': pTop
		});
	var winW = $(window).width();
	var popupWidth = $(options.className).width();
	$(options.className).css({
		'width': options.width,
		'left': winW/2 - popupWidth/2
		}).fadeIn(200);
  $('body, #mask').height(Math.max($(document).height(),24 + pTop + $(options.className).height()));
}
$(window).resize(function(){
		if($('.popup').is(':visible')){
			$.updateMask();$.calcTopPosition();
		}
	});

$.updateMask = function(options){
  var defaults = {
		className: '.popup'
		};
  
  var maskHeight = $(document).height();
  var maskWidth = $(window).width();
  $('#mask').css({
		'width':maskWidth,
		'height':maskHeight
  });
  
  $('body, #mask').height('auto');
  var options = $.extend(defaults,options);
  var winH = $(window).height();
  var winW = $(window).width();
  var pTop = parseInt($(options.className).css('top'));
  $('body, #mask').height(Math.max($(document).height(),24 + pTop + $(options.className).height()));
}

$.popup = function(options){
	// defaults options
	var defaults = {
		htmlCode: '<div style="padding:15px;text-align:center;"><img src="/assets/images/ajax-loader.gif" alt=""/></div>',
		clickMask: true,//
		maskOpacity: 0.333,//
		width: 610, // popup width
		className: '.popup',//
		classContent:'.popup-content',//
		title: '', // popup title
    top: null
		};
		var options = $.extend({},defaults,options);
		
    		var maskHeight = $(document).height();
   			var maskWidth = $(window).width();
    		$('#mask').css({
  				'width':maskWidth,
  				'height':maskHeight
  			});

    		$('#mask').fadeTo(50,options.maskOpacity);
			if(options.title != '') { $(options.className).find('h3').text(options.title); } else { $(options.className).find('h3').text(defaults.title); }
			if(options.htmlCode != '') { $(options.className).find(options.classContent).html(options.htmlCode); } else { $(options.className).find(options.classContent).html(defaults.htmlCode); }


	    var winW = $(window).width();
	    	
			$(options.className).css({
				'width': options.width,
				'left': winW/2 - options.width/2
				}).fadeIn(200);
			$.calcTopPosition({className: options.className,width: options.width, top: options.top});
			

			if(options.clickMask){var mask = $('#mask');}

			$('.close_').add(mask).click(function () {
				$.closePopup();
				return false;
    		});
			$(document).keyup(function (e) {
				if(e.keyCode == 27){$.closePopup();}
			});
		//return false;
    	}
})(jQuery);