Develop Reference

One page scroll wrong offset with floating menu bar

I am having an issue. Im using a one page design for a friend with a fixed floating menu on the top. The problem I encounter is that when I click on a link it scrolls down but the offset is not right. Most the of time it scrolls down a little too much covering the content below the menu. What I am trying to achieve is that the scrolling stops at the div being exactly below my menu bar. The other issue is that somehow it wont scroll down when the space between two sections is too narrow. It tries but somehow only moves a few pixels then stops. I can imagine that both are related to the offset issue.
Im sorry, english is not my native language.
Here is what I got so far. A standard scrolling function with window.location.hash. The target are divs spread across the site.
$(document).ready(function () {
$('a[href^="#"]').on('click', function (e) {
e.preventDefault();
var target = this.hash;
var t = $(this.hash).offset().top;
$('.wrapper').animate({
scrollTop: t,
}, 1000, function () {
window.location.hash = target;
});
});
});
You can see an example of the problem live: http://rolfvohs.com/
What I tried so far was using the add.class function to bind the div with an extra padding when a link is clicked. It does work in a way but creates an awkward space. I also tried placing the divs at different locations but that does not fix the job either, just messes it up further.
I would appreciate some insight.

window.location.hash = target;
moves the scroll by default to the div position and you are setting offset top before the hash change so first its changes the offset after that it move to div location.
first try after removing the line "window.location.hash = target;" from the code
or
move the "window.location.hash = target;" out side and above the "$('.wrapper').animate({})" it will work .

Using Jquery to toggle on and off items based distance to top

I am creating a site in which there are a number of fixed background images that you scroll past. Associated with each fixed background is an image slider (or text) that is hidden until the title is clicked on. These items are all fixed positioned.
I was able to make this work by using z-index to place items in order top to bottom/first to last and then have each disappear in turn using:
$(document).scroll(function() {
$('#porttitle').toggle($(this).scrollTop() < 225);
});
However, I am unable to use this because the length pixel distance down on the page changes based on the screen size. I am pretty new to Jquery but wanted to try to use .offset .top to have the item disappear not based on the pixel length to the top of the page but instead when an element appears on the screen. This is what I have so far but it isn't seeming to work.
$(document).scroll(function() {
$('#porttitle').toggle($(this).scrollTop() < $(‘article.post-100’).offset().top);
});
Here is the link to the site: http://s416809079.onlinehome.us (not final location - just developing)
Any thoughts?
Thanks!

I think this may work for you, read the comments on the code for a line by line explanation.
Working Example
$(window).scroll(function () { // When the user scrolls
$('div').each(function () { // check each div
if ($(window).scrollTop() < $(this).offset().top) { // if the window has been scrolled beyond the top of the div
$(this).css('opacity', '1'); //change the opacity to 1
} else { // if not
$(this).css('opacity', '0'); // change the opacity to 0
}
});
});
I'm conditionally changing the opacity rather than using toggle because:
...jQuery does not support getting the offset coordinates of hidden
elements or accounting for borders, margins, or padding set on the
body element.
While it is possible to get the coordinates of elements with
visibility:hidden set, display:none is excluded from the rendering
tree and thus has a position that is undefined.
Related documentation:
.offset()
.each()
.scroll()
.scrollTop()

Jquery Sticky Nav Issue

I'm been trying to get my head around issue and seem to cant find some help.
http://fiddle.jshell.net/DQgkE/7/show/
The experience is a bit jumpy and buggy now- but what i will like is
1) When you scroll down the page. I want the Sticky Nav to be (disable,dropped off, stop) at a specific location(chapter-3) on the page and the user should have the ability to keep scrolling down.
2) When the user is scrolling back up, the code will stick the nav back and carry it up until the nav reaches the original position at the top.
Below is a starting point.
3) Currently is kinda of doing that but there's some huge jump going on when scrolling back up
http://imakewebthings.com/jquery-waypoints/#doc-disable
using disable, destroy, enable option will be nice.
This is a original experience cleaned: http://fiddle.jshell.net/DQgkE/1/show/
Thanks for the help in Advance.

I'm not sure how this plugin you used work, but I have a solution I wrote a while back that I wrote in jquery. It has few variables at the top, the item you wanted sticky, the item where you want it to stop, and the class to add when it becomes sticky and padding at the top and bottom. I only modified the javascript portion in this fork.
EDIT
I went ahead and fixed the original code. Solution without waypoint plugin is in comments.
Here is the result:
http://fiddle.jshell.net/Taks7/show/

I would recommend to use jQuery (that was a surprise, right?! :P)
$(document).ready(function() { //when document is ready
var topDist = $("nav").position(); //save the position of your navbar !Don't create that variable inside the scroll function!
$(document).scroll(function () { //every time users scrolls the page
var scroll = $(this).scrollTop(); //get the distance of the current scroll from the top of the window
if (scroll > topDist.top - *distance_nav_from_top*) { //user goes to the trigger position
$('nav').css({position:"fixed", width: "100%", top:"*distance_nav_from_top*"}); //set the effect
} else { //window is on top position, reaches trigger position from bottom-to-top scrolling
$('nav').css({position:"static", width:"initial", top:"initial"}); //set them with the values you used before scrolling
}
});
});
I really hope I helped!

Jquery Scroll One pixel from where ever the user is on screen

okay heres the scenario. I have a one page website with may sections using anchor links. Whe the user is on a secondary layout (page) and when they click on to go to a section on the main page again, for some reason the graphics dont load properly until a scroll happens. All I want to do is whenever the main layout is loaded, no matter which anchor it loads to, simply scroll the page up or down by 1 pixel.
$.scrollTo({ top: '+=100px', left: '+=0px' }, 800);
I tried the above, but this code simply takes the user 100 pixels from the top. I don't want that to happen, i.e. not from the top but from where ever the user is on screen.

use jquery scrollTop() to set the scroll position to the current scroll position + 1:
$(window).scrollTop($(window).scrollTop()+1);

I have a similar problem. I want to scroll down 1 pixel and then 1 pixel up, so the user hopefully won't notice anything at all. I did this:
window.scrollBy(0, 1); // 0 pixels horizontal and 1 pixel down
window.scrollBy(0, -1); // 0 pixels horizontal and 1 pixel up
UPDATE:
But I might end up using JQuery instead. All I want is the scroll event to fire and I can do that with:
$(window).scroll();

A pure JavaScript solution without the jQuery overhead:
window.scrollY += 100;
With jQuery (and a fancy animation):
var cur = $(window).scrollTop();
$(window).animate({scrollTop: cur + 100});

$("html, body").animate({scrollTop: ($(window).scrollTop() + 1)});

Scrolling div within bounds

I have div with images inside it and need to scroll it left and right. I,ve managed to get the scrolling to work, but now I need it to stay in the displayable area.
I need to use jQuery
$('#next').click(function() {
$('#slides').animate({left: '-=80',}, 2000, function() {});
});
$('#prev').click(function() {
$('#slides').animate({left: '+=80',}, 2000, function() {});
});
The two "buttons" is used to scroll.
How do I get the slides' position.left to stay between 0 and -1120 ?
This will be the bottom of my slideshow. The large images will be at the top.
How do I change the z-index of a div ?

You change the z-index using css:
div.class {
z-index: 60;
}

You should get the width of your displayable area then by making use of the width() method.
If you have the maximum width you can use you can easily implement a check before your animation. So if the new width (current - 80) is bigger than 0, fine ... animate it. If not, don't.
Same for scrolling to the right. If it's bigger than your displayable area's width, then don't scroll.
EDIT
You changed your question slightly, so to get the current left value you can check it with:
$('#element').offset().left
This returns the current integer value of your left attribute. Thus again you can verify its current value and compare it with the one that it'd be like after you animated it. If it's too big or too small, don't scroll.

You can check the css left value is in the interval:
if(parseInt($('#slides').css('left')) > -1120 && parseInt($('#slides').css('left')) < 0){
....//animate here
}