(function($){
	$.fn.pageSlide = function(options) {
    
		var settings = $.extend({
				width:          "300px", // Accepts fixed widths
				duration:       "normal", // Accepts standard jQuery effects speeds (i.e. fast, normal or milliseconds)
				direction:      "left", // default direction is left.
				modal:          false, // if true, the only way to close the pageslide is to define an explicit close class. 
				iframe:			false,
				_identifier: $(this)
			}, options);
			
		// these are the minimum css requirements for the pageslide elements introduced in this plugin.

		var pageslide_slide_wrap_css = {
			position: 'fixed',
			width: '0',
			top: '0',
			height: '100%',
			zIndex:'999'
		};
		
		var pageslide_body_wrap_css = {
			position: 'relative',
			zIndex: '4'
		};

		var pageslide_blanket_css = { 
			position: 'absolute',
			top: '0px',
			left: '0px',
			height: '10000%',
			width: '100%', 
			opacity: '0.0',
			background: '#000',
			zIndex: '5',
			filter: 'alpha(opacity=60)',
			display: 'none'
		};


		function _initialize(anchor) {
	
			// Create and prepare elements for pageSlide
			if ($("#pageslide-body-wrap, #pageslide-content, #pageslide-slide-wrap").size() == 0) {
			
				var psBodyWrap = document.createElement("div");
				$(psBodyWrap).css(pageslide_body_wrap_css);
				$(psBodyWrap).attr("id","pageslide-body-wrap").width( $("body").width() );
				$("body").contents().wrapAll( psBodyWrap );
						
				var psSlideContent = document.createElement("div");
				$(psSlideContent).attr("id","pageslide-content").width( settings.width );
	
				var psSlideWrap = document.createElement("div");
				$(psSlideWrap).css(pageslide_slide_wrap_css);
				$(psSlideWrap).attr("id","pageslide-slide-wrap").append( psSlideContent );
				$("body").append( psSlideWrap );  	    
			}
		  
		  // introduce the blanket if modal option is set to true.
			if ($("#pageslide-blanket").size() == 0 && settings.modal == true) {
				var psSlideBlanket = document.createElement("div");
				$(psSlideBlanket).css(pageslide_blanket_css);
				$(psSlideBlanket).attr("id","pageslide-blanket");
				$("body").append( psSlideBlanket );
				$("#pageslide-blanket").click(function(){ return false; });
			}
					
			// Callback events for window resizing
			$(window).resize(function(){
				$("#pageslide-body-wrap").width( $("body").width() );
			});
		  
		  // mark the anchor!
			$(anchor).attr("rel","pageslide");
		  
		};
	 
		function _openSlide(elm) {
			jQuery("body").css("overflow","hidden");
			
			if($("#pageslide-slide-wrap").width() != 0) return false;
			_showBlanket();
			
			// decide on a direction
			if (settings.direction == "right") {
				direction = {right:"-"+settings.width};
				$("#pageslide-slide-wrap").css({left:0});
				_overflowFixAdd();
			}else{
				direction = {left:"-"+settings.width};
				$("#pageslide-slide-wrap").css({right:0});
			}
																		
			/*
			$("#pageslide-slide-wrap").animate({width: settings.width}, settings.duration);
			$("#pageslide-body-wrap").animate(direction, settings.duration, function() {							
				
				if (settings.iframe){
					var html = '<iframe width="'+settings.width+'" height="'+jQuery(window).height()+'px" src="'+$(elm).attr("href")+'?iframe=true" style="height:'+jQuery(window).height()+'px; width:100%; border:0;" id="myiframeresize"></iframe>';
					$("#pageslide-content").css("width",settings.width);
					$("#pageslide-content").html(html);
					$(window).resize(function() {
						$('#myiframeresize').css("height",jQuery(window).height());
					});				
				}else{
					$.ajax({
					  type: "GET",
					  url: $(elm).attr("href"),
					  success: function(data){
						$("#pageslide-content").css("width",settings.width).html(data)
							.queue(function(){
								$(this).dequeue();
								// add hook for a close button
								$(this).find('.pageslide-close').unbind('click').click(function(elm){
									_closeSlide(elm);
									$(this).find('pageslide-close').unbind('click');
								});
							});
						}
					});
				}
			});*/
									
			$("#pageslide-slide-wrap").animate({width: settings.width}, settings.duration);							

			if (settings.iframe){
				var html = '<iframe width="'+settings.width+'" height="'+jQuery(window).height()+'px" src="'+$(elm).attr("href")+'?iframe=true" style="height:'+jQuery(window).height()+'px; width:100%; border:0;" id="myiframeresize"></iframe>';

				$("#pageslide-content").css("width",settings.width);					
				$("#pageslide-content").html(html);

				$(window).resize(function() {
					$('#myiframeresize').css("height",jQuery(window).height());
				});					
				var tentativi = 0;																		
				function parti(){
					if (tentativi<15){
						if (!$("#myiframeresize").contents().find('body').html()){
							tentativi++;
							window.setTimeout(parti, 300 );
						}else{
							$("#pageslide-body-wrap").animate(direction, settings.duration);
						}
					}else{
						$("#pageslide-body-wrap").animate(direction, settings.duration);
					}
				}
				window.setTimeout(parti, 300 );
			}else{
				$("#pageslide-body-wrap").animate(direction, settings.duration, function() {
					$.ajax({
					  type: "GET",
					  url: $(elm).attr("href"),
					  success: function(data){
						$("#pageslide-content").css("width",settings.width).html(data)
							.queue(function(){
								$(this).dequeue();
								// add hook for a close button
								$(this).find('.pageslide-close').unbind('click').click(function(elm){
									_closeSlide(elm);
									$(this).find('pageslide-close').unbind('click');
								});
							});
						}
					});
				});
			}
		};
	
		//Chiusra finestra con tasto ESC
		$(document).keyup(function(e) {
			if (e.keyCode == 27) { $.fn.pageSlideClose(settings); }   // esc			 			
		});


		function _closeSlide(event) {
			jQuery("body").css("overflow","auto");
			if ($(event)[0].button != 2 && $("#pageslide-slide-wrap").css('width') != "0px") { // if not right click.
				$.fn.pageSlideClose(settings);
			}
		};
			
		// this is used to activate the modal blanket, if the modal setting is defined as true.
		function _showBlanket() {
			if(settings.modal == true) {
				$("#pageslide-blanket").toggle().animate({opacity:'0.8'}, 'fast','linear');
			}
		};

		// fixes an annoying horizontal scrollbar.
		function _overflowFixAdd(){($.browser.msie) ? $("body, html").css({overflowX:'hidden'}) : $("body").css({overflowX:'hidden'});}

		// Initalize pageslide, if it hasn't already been done.
		_initialize(this);

		return this.each(function(){
			$(this).unbind("click").bind("click", function(){
				function _checkA(elm) { for (; elm != null; elm = elm.parentElement) { if (elm.tagName == 'A') return true; } return false; }
				_openSlide(this);
				$("#pageslide-slide-wrap").unbind('click').click(function(e){ if(! _checkA(e.target)) return false; });	  
				if (settings.modal != true) {
					$(document).unbind('click').click(function(e) { if(! _checkA(e.target)){ $(document).unbind('click'); _closeSlide(e); return false } });
				}
				return false;
			});	
		});
	};
})(jQuery);

// pageSlideClose allows the system to automatically close any pageslide that is currently open in the view.
(function($){
	$.fn.pageSlideClose = function(options) {
    
    	var settings = $.extend({
		    width:          "300px", // Accepts fixed widths
		    duration:       "normal", // Accepts standard jQuery effects speeds (i.e. fast, normal or milliseconds)
		    direction:      "left", // default direction is left.
		    modal:          false, // if true, the only way to close the pageslide is to define an explicit close class. 
		    _identifier: $(this)
		}, options);
		
		function _hideBlanket() { if(settings.modal == true && $("#pageslide-blanket").is(":visible")) {
			$("#pageslide-blanket").animate({opacity:'0.0'}, 'fast','linear',function(){$(this).hide();});
    	}}
    
		function _overflowFixRemove(){($.browser.msie) ? $("body, html").css({overflowX:''}) : $("body").css({overflowX:''});}
		
    	_hideBlanket();
    	direction = ($("#pageslide-slide-wrap").css("left") != "0px") ? {left: "0"} : {right: "0"};
		$("#pageslide-body-wrap").animate(direction, settings.duration);
    	
		$("#pageslide-slide-wrap").animate({width: "0"}, settings.duration, function() {
      		// clear bug
			$("#pageslide-content").css("width","0px").empty();
      		$('#pageslide-body-wrap, #pageslide-slide-wrap').css('left','');
      		$('#pageslide-body-wrap, #pageslide-slide-wrap').css('right','');
      		_overflowFixRemove();
    	});
	}
})(jQuery);

// this adds the ability to close pageSlide with the 'escape' key, if not modal.
(function($){
	$(document).ready(function(){
    	$(document).keyup(function(event){
      		if (!$("#pageslide-blanket").is(":visible") && event.keyCode == 27) $.fn.pageSlideClose();
    });
  });
})(jQuery);