// social media bar
function scrollShareOptions(el) {
         var top = el.offsetTop;
         var left = el.offsetLeft;
         var width = el.offsetWidth;
         var height = el.offsetHeight;
         while(el.offsetParent) {
            el = el.offsetParent;
            top += el.offsetTop;
         }        
         if(typeof window.pageYOffset!= 'undefined'){
                     return (top < window.pageYOffset);
         } else {
                   if(typeof document.documentElement.scrollTop!='undefined'){
                            return (top < document.documentElement.scrollTop);
                   }
         }
}
var runonce = 0;
$(window).bind('scroll', function(e) { 
	 var el = document.getElementById('brandInfo')         
		 if (scrollShareOptions(el)) {
			 if(runonce==1){
				 runonce = 0
				 $('.timeline').animate({ top: 20 }, 'slow',  function() {});
	 }
		 } else {
		 if (runonce == 0) {
			 runonce = 1
			 $('.timeline').animate({ top: 150 }, 'slow', function() { });
		 }
	}
});


function tourfilter(t,o){
	$(".bartitle").addClass("bartitleblur");
	$(".tour").hide();
	$('#'+t).show();
	$("#timeline li a").removeClass("activeli")
	$(o).addClass("activeli")
}
$(function(){
    var ma_default = {anchortag: "href", anchorSmooth: true};
	$(".breakfast").mAnchor(ma_default);
    $(".afterbreakfast").mAnchor(ma_default);
    $(".latemorning").mAnchor(ma_default);    
    $(".lunch").mAnchor(ma_default);
    $(".hutongstroll").mAnchor(ma_default);
    $(".lateafternoon").mAnchor(ma_default);    
    $(".supper").mAnchor(ma_default);
	$(".evening").mAnchor(ma_default);

    var sTags = $("#timeline");
        sTags_top = sTags.offset().top;
        
    $(window).unbind("scroll");
    $(window).bind("scroll", function() {
        try{
			var tab_promotion = $("#breakfast").eq(0);
			var tab_classic   = $("#afterbreakfast").eq(0);
			var tab_intrest   = $("#latemorning").eq(0);
			var tab_type      = $("#lunch").eq(0);
			var tab_price     = $("#hutongstroll").eq(0);
			var tab_stopover  = $("#lateafternoon").eq(0);
			var tab_wild      = $("#supper").eq(0);
			var tab_beyond    = $("#evening").eq(0);
			
            var self_top = $(this).scrollTop();
            if( self_top > sTags_top ){
                //sTags.css({"position": "fixed", "top": 0, "z-index": 10});
				//console.log(self_top+'=='+sTags_top+'ss'+tab_promotion.offset().top)
                if(self_top > tab_promotion.offset().top - 10 && tab_promotion.offset().top != 0){
                    changingOverTab($("#timeline .breakfast"));
                }
                if(self_top > tab_classic.offset().top - 10 && tab_classic.offset().top != 0){
                    changingOverTab($("#timeline .afterbreakfast"));
                }
                if(self_top > tab_intrest.offset().top - 10 && tab_intrest.offset().top != 0){
                    changingOverTab($("#timeline .latemorning"));
                }
                if(self_top > tab_type.offset().top - 10 && tab_type.offset().top != 0){
                    changingOverTab($("#timeline .lunch"));
                }
                if(self_top > tab_price.offset().top - 10 && tab_price.offset().top != 0){
                    changingOverTab($("#timeline .hutongstroll"));
                }
                if(self_top > tab_stopover.offset().top - 10 && tab_stopover.offset().top != 0){
                    changingOverTab($("#timeline .lateafternoon"));
                }
                if(self_top > tab_wild.offset().top - 10 && tab_wild.offset().top != 0){
                    changingOverTab($("#timeline .supper"));
                }
                if(self_top > tab_beyond.offset().top - 10 && tab_beyond.offset().top != 0){
                    changingOverTab($("#timeline .evening"));
                }
            }else{
                //sTags.css({"position": "static", "background": "none"});
                changingOverTab($("#timeline .breakfast"));
            }    
        }catch(err){}    
    });  

});

function changingOverTab(o) {

    var a_current = o;
    var a_parent = a_current.parent();
    var a_current_name = a_current.attr("class");
	
    a_parent.siblings().each(function(){
        var sibling = $(this).find("a");
        var sibling_name = sibling.attr("class");
        if(testReg(/activeli/, sibling_name)){
            sibling.removeClass('activeli');
        }
    });
	
    if(testReg(/activeli/, a_current_name)){
    }else{
		a_current.addClass("activeli");
    }
}

function testReg(reg,str){
    return reg.test(str);
}