/**
 * Vittorio Ottaviani - Mitecube -2011
 */

var Browser = {
  Version: function() {
    var version = 999; // we assume a sane browser
    if (navigator.appVersion.indexOf("MSIE") != -1)
      // bah, IE again, lets downgrade version number
      version = parseFloat(navigator.appVersion.split("MSIE")[1]);
    return version;
  }
};

function caneaseizampe_parallelScrollRightFaster(item) {
//	alert("caneaseizampe_parallelScrollRightFaster "+$(".post").height()+" - "+$(".wrapInternalNav").height());
	$(item).css( {'top': 97-1*($(window).scrollTop()*($(".wrapInternalNav").height()/$(".post").height()))/2+'px' });
};

function caneaseizampe_parallelScrollLeftFaster(item) {
//	alert("caneaseizampe_parallelScrollLeftFaster "+$(".post").height()+" - "+$(".wrapInternalNav").height());
	$(item).css( {'top': 137-1*($(window).scrollTop()*($(".post").height()/$(".wrapInternalNav").height()))*1.5+'px' });
};

function caneaseizampe_keepBg(item) {
	$(item).css( {'position': 'fixed' });
}

$(document).ready(function() {

	if (!((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i)) || (navigator.userAgent.match(/iPad/i)))) {
		
		if ($('.page-inizia-il-viaggio').length == 0 && $('.page-tempi-moderni').length == 0 ) {

			pageSize = 137+60; //437;

			if ($('.wrapInternalNav .listaGallery').length){
//				alert($('.wrapInternalNav .listaGallery li').width());
				items = Math.ceil($(".wrapInternalNav li").length/3);
//				$('.wrapInternalNav').height(50 + (items*($(".wrapInternalNav li").width()/1.3)));
				$('.wrapInternalNav').height(10+(items*($(".wrapInternalNav li").width()*(189/291))));
				pageSize = 137+60+50;
			}

			$(window).unbind("scroll");
			$(".wrapInternalNav").css({'left': 0, 'overflow': 'hidden', 'padding': '40px 0 110px', 'position': 'absolute', 'top': '97px', 'width': '50%', 'z-index': '2'});
			if($(".wrapInternalNav").height()+pageSize > ($(window).height())){

				if($(".wrapInternalNav").height() > $(".post").height()){
					$(".wrapInternalNav").css({'width':'100%', 'top': -40});
					$(".post").css({'position':'fixed', 'top': 137, 'padding-bottom':"160px"});

					if (Browser.Version() < 8) {
						$(".column .right").css({ "float":"left", "width":"50%"});
						$(".post").css({ "width":"45%"});
					}
				
			    	$(window).scroll(function(){
			    		caneaseizampe_parallelScrollLeftFaster(".post");
				    	});
				} else if($(".wrapInternalNav").height() < $(".post").height()){
					$(".wrapInternalNav").css({'position':'fixed', 'top': 97, 'float':'right', "width":"50%"});
			    	$(window).scroll(function(){
			    		caneaseizampe_parallelScrollRightFaster(".wrapInternalNav");
			    		});
				}

			}else{
				$(".wrapInternalNav").css({'position':'fixed', 'top': 97, 'float':'right', "width":"50%"});
			}

	    	$(window).scroll(function(){
	   		 	caneaseizampe_keepBg("#bgStoria");
		    	});

		}
		
	} else {
		
		if ($('.page-inizia-il-viaggio').length == 0 && $('.page-tempi-moderni').length == 0 ) {

			pageSize = 137+60; //437;

			if ($('.wrapInternalNav .listaGallery').length){
				items = Math.ceil($(".wrapInternalNav li").length/3);
				$('.wrapInternalNav').height(10+(items*($(".wrapInternalNav li").width()*(189/291))));
				pageSize = 137+60+50;
			}

			$(".wrapInternalNav").css({'left': 0, 'overflow': 'scroll', 'padding': '40px 0 110px', 'position': 'absolute', 'top': '97px', 'width': '50%', 'z-index': '200'});
			if($(".wrapInternalNav").height()+pageSize > ($(window).height())){

				if($(".wrapInternalNav").height() > $(".post").height()){
					$(".wrapInternalNav").css({'width':'100%', 'top': -40});
					$(".post").css({'position':'fixed', 'top': 137, 'padding-bottom':"160px"});
				} else if($(".wrapInternalNav").height() < $(".post").height()){
					$(".wrapInternalNav").css({'position':'fixed', 'top': 97, 'float':'right', "width":"50%"});
				}

			}else{
				$(".wrapInternalNav").css({'position':'fixed', 'top': 97, 'float':'right', "width":"50%"});
			}

	    	$(window).scroll(function(){
	   		 	caneaseizampe_keepBg("#bgStoria");
		    	});

		}
		
	}

});

function setPageDimensions(){
	if ($('.page-inizia-il-viaggio').length == 0 && $('.page-tempi-moderni').length == 0 ) {

		pageSize = 137+60; //437;

		if ($('.wrapInternalNav .listaGallery').length){
//			alert($('.wrapInternalNav .listaGallery li').width());
			items = Math.ceil($(".wrapInternalNav li").length/3);
//			$('.wrapInternalNav').height(50 + (items*($(".wrapInternalNav li").width()/1.3)));
			$('.wrapInternalNav').height(10+(items*($(".wrapInternalNav li").width()*(189/291))));
			pageSize = 137+60+50;
		}

		$(window).unbind("scroll");
		$(".wrapInternalNav").css({'left': 0, 'overflow': 'hidden', 'padding': '40px 0 110px', 'position': 'absolute', 'top': '97px', 'width': '50%', 'z-index': '2'});
	
		if($(".wrapInternalNav").height()+pageSize > ($(window).height())){
	
			if($(".wrapInternalNav").height() > $(".post").height()){
				$(".wrapInternalNav").css({'width':'100%', 'top': -40});
				$(".post").css({'position':'fixed', 'top': 137, 'padding-bottom':"160px"});

				if (Browser.Version() < 8) {
					$(".column .right").css({ "float":"left", "width":"50%"});
					$(".post").css({ "width":"45%"});
				}

			    $(window).scroll(function(){
			    	caneaseizampe_parallelScrollLeftFaster(".post");
			    	});
			} else if($(".wrapInternalNav").height() < $(".post").height()){
	
				$(".wrapInternalNav").css({'position':'fixed', 'top': 97, 'float':'right'});

			    $(window).scroll(function(){
			    	caneaseizampe_parallelScrollRightFaster(".wrapInternalNav");
		    		});
			}

		}else{
			$(".wrapInternalNav").css({'position':'fixed', 'top': 97, 'float':'right'});
		}

	}
	
//	alert("setPageDimensions "+$(".post").height()+" - "+$(".wrapInternalNav").height()+" - "+$(window).height());

}

$(window).resize(function() {
	if ((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i)) || (navigator.userAgent.match(/iPad/i))) {
		$(".wrapInternalNav").css({'overflow':'scroll'});
		$(".post").css({'overflow':'scroll','height':'200px'});
	}else{
		setPageDimensions();
	}
});

$(window).load(function() {
	if ((navigator.userAgent.match(/iPhone/i)) || (navigator.userAgent.match(/iPod/i)) || (navigator.userAgent.match(/iPad/i))) {
		$(".wrapInternalNav").css({'overflow':'scroll'});
		$(".post").css({'overflow':'scroll'});
	}else{
		setPageDimensions();
	}
});