We Keep Coding

Use JQuery to fix element from bottom of window

I found plenty of examples of fixing an element's top relative to the window. How do I fix an element X pixels from the bottom of the window? Simply changing 'top' to 'bottom' does not work (for example,if the element's height is more than the window height)
From the top:
var pixels = 10;
var $elemPosition = $element.position();
var $elementH = $element.height();
var $windowH = $(window).height();
var $bottom = $element.offset().top + $element.height();
if ($(window).scrollTop() + pixels >= $elemPosition.top) {
$element.css({
'position': 'fixed',
'top': pixels + 'px'
});
} else {
$element.css({
'position': 'relative',
'top': '0px'
});
}
Solved it! Solution I came up with:
if (($windowH + $(window).scrollTop() - $bottom - pixels) >= 0) {
$element.css({
'position': 'fixed',
'top': ($windowH - $element.height() - pixels) + 'px',
'width': $eW + 'px',
'height': $eH + 'px'
});
} else {
$element.css({
'position': 'relative',
'top': '0px'
});
}

Use the CSS bottom property instead of the top property.
$element.css({
'position': 'fixed',
'bottom': pixels + 'px'
});

According to your comments and demand :
for example,if the element's height is more than the window height
You wants something like this ?
JS
$element = $("#element");
function setPosition(){
var pixels = 10;
var $elementH = $element.height();
var $windowH = $(window).height();
if ($windowH > $elementH) {
$element.css({
'position': 'fixed',
'bottom': pixels + 'px'
});
} else {
$element.css({
'position': 'relative',
'bottom': '0px'
});
}
}
$(function(){
setPosition();
$(window).scroll(function(){
setPosition();
});
});
If you try to change the height of the element to 700px for instance, you'll see he gets relative position.

moving the caption of a tooltip

Can somebody please tell me how to arrange the caption above the image in the jsfiddle below as I can not seem to do it. The caption is currently below the image. Thanks in advance.
Sample Code
<script type="text/javascript">
$(function(){
$("ul.thumb li").hover(function() {
$(this)
.css('z-index', '10')
.find('img').addClass("hover")
.stop()
.animate({
marginTop: '-150px',
marginLeft: '-150px',
top: '50%',
left: '50%',
width: '300px',
height: '300px',
padding: '20px'
}, 200, function() {
var $this = $(this),
h = $this.height();
$caption = $('<div class="caption">' + this.title + '</div>')
.css('top', h.toString() + 'px');
$this.after($caption);
});
}, function() {
$('.caption').remove();
$(this)
.css('z-index', '0')
.find('img').removeClass("hover")
.stop()
.animate({
marginTop: '0',
marginLeft: '0',
top: '0',
left: '0',
width: '200px',
height: '200px',
padding: '5px'
}, 400);
});
});
</script>
I hope this helps

Here is an updated FIDDLE.
The relevant line is this one:
.css('top', -h.toString() + 'px');
It positions the div for the text, and to change the position above the image, I just placed a negative sign in front of h.toString(). You could finely adjust the position by multiplying the h.toString() by a coefficient like -.8 or -.92 to make finer adjustments. It may be problematic putting it above the image, because you'll have to adjust the position based on the height of the text div.

How To Get This to Fade In?

The code below works, but #wrapperone justs pops up on the screen.. is there a way to get it to fade in?
jQuery(window).load(function(){
function fixDiv() {
var jQuerydiv = jQuery("#wrapperone");
if (jQuery(window).scrollTop() > jQuerydiv.data("top")) {
jQuery('#wrapperone').css({'position': 'fixed', 'top': '0', 'width': '100%', 'background': 'rgba(255,255,255,0.1)'});
}
else {
jQuery('#wrapperone').css({'position': 'static', 'top': 'auto', 'width': '100%', 'background': 'transparent'});
}
}
jQuery("#wrapperone").data("top", jQuery("#wrapperone").offset().top);
jQuery(window).scroll(fixDiv);
});

Try playing with the opacity and using the fadeIn feature of jQuery.
jQuery(window).load(function(){
function fixDiv() {
var jQuerydiv = jQuery("#wrapperone");
if (jQuery(window).scrollTop() > jQuerydiv.data("top")) {
jQuery('#wrapperone').css({'position': 'fixed', 'top': '0', 'width': '100%', 'background': 'rgba(255,255,255,0.1)', 'opacity': '0'}).fadeIn(100);
}
else {
jQuery('#wrapperone').css({'position': 'static', 'top': 'auto', 'width': '100%', 'background': 'transparent'});
}
}
jQuery("#wrapperone").data("top", jQuery("#wrapperone").offset().top);
jQuery(window).scroll(fixDiv);
});`

$("#wrapperone").fadeIn();
I think this is what you are looking for.
More about the fadeIn feature here

Try like below,
function fixDiv() {
var jQuerydiv = jQuery("#wrapperone");
if (jQuery(window).scrollTop() > jQuerydiv.data("top")) {
jQuery('#wrapperone')
.hide() //Hide the wrapper
// v-- Position it
.css({'position': 'fixed', 'top': '0', 'width': '100%', 'background': 'rgba(255,255,255,0.1)'})
.fadeIn(); //Fade In
}
else {
jQuery('#wrapperone')
.hide() //Hide the wrapper
// v-- Position it
.css({'position': 'static', 'top': 'auto', 'width': '100%', 'background': 'transparent'})
.fadeIn(); //Fade In
}
}

jquery offset() return empty string in each() in firefox 12

http://jsfiddle.net/suenot/3b3XM/1/
// in FF and IE each() don't work offset()
// $(this).offset().top return empty string
$(document).ready(function(){
var index = 0;
$('.box').each(function(){
var background = $(this).css('background');
$(this).css('background', 'none');
var height = $(this).css('height');
var top = $(this).offset().top;
$('body').prepend('<div id="box' + ++index + '"></div>');
$('#box' + index).css({
'height': height,
'background': background,
'position': 'absolute',
'z-index': '-1',
'top': top,
'width': '100%'
});
});
});​
Help me please, i can't find the solution.

I am not sure if $(this).css('background-color'); is what you want, but after updating it shows the box. See output in fiddle
$(document).ready(function(){
var index = 0;
$('.box').each(function(){
var background = $(this).css('background-color');
$(this).css('background', 'none');
var height = $(this).css('height');
var top = $(this).offset().top;
$('body').prepend('<div id="box' + ++index + '"></div>');
$('#box' + index).css({
'height': height,
'background': background,
'position': 'absolute',
'z-index': '-1',
'top': top,
'width': '100%'
});
});
});

Jquery: functions calls when the page loads

I have a complex function called animated(). Now this function has to affect 2 different DOM elements: one when the page loads, and the second one when I click on it.
$("li div").click(animated);
How can I make it happen for at the start in any case on another <div>?
Something like:
$("li div").animated();
I know that's not right, so how can I do something like that?
thanks for the answers....any way I'm pretty new with Jquery so i'm gonna copy the my code here so yous have an idea about what is going on...this code works perfectly but is redundant and I'm sure there is a way to reduce it.
here is the jquery code
$(document).ready(function() {
var wrapperheightanim = $(window).height(); // check the dimension of the window to see how many rectangles i can fit
var locid = window.location.hash.replace("!", ""); // save the location id in case the user starts from a page that is not the home
$(window).resize(function() {
wrapperheightanim = $(window).height();
});
//rollover
$("li").hover(
function () {
$("img", this).fadeIn(500);
},
function () {
$("img", this).fadeOut(500);
}
);
//click on the navbar
function animated() {
var titletemp = $(this).attr("id"); // save the id in a temp var
var title=titletemp.replace(/_/g, ' '); // I use the id as titles so i substitute underscores with spaces
var color = $(this).css("background-color"); // save the bgcolor of the main square
// animation that bring every square to the start position
$("#about").animate({top:'200px', left:"0", height: "180px", width:"200px"}, 1000, "easeInOutBack");
$("#social_media").animate({top:'90px', left:"200px", height: "140px", width:"200px"}, 1000, "easeInOutBack");
$("#bd_package").animate({top:'90px', left:"400px", height: "140px", width:"200px"}, 1000, "easeInOutBack");
$("#services").animate({top:'230px', left:"200px", height: "130px", width:"560px"}, 1000, "easeInOutBack");
$("#portfolio").animate({top:'360px', left:"200px", height: "350px", width:"200px"}, 1000, "easeInOutBack");
$("#clients").animate({top:'360px', left:"400px", height: "220px", width:"200px"}, 1000, "easeInOutBack");
$("#contact").animate({top:'290px', left:"600px", height: "160px", width:"220px"}, 1000, "easeInOutBack");
$("#quote").animate({top:'230px', left:"760px", height: "60px", width:"60px"}, 1000, "easeInOutBack");
$("#blog").animate({top:'280px', left:"840px", height: "60px", width:"60px"}, 1000, "easeInOutBack");
$(".shape").animate({top:'200px', left:"200px", height: "0", width:"0"}, 1000, "easeInOutBack");
// remove the images from the rollover
$("img", "li").fadeIn(1);
$("img", this).fadeOut(1);
// create the main container
$(this).css("z-index", 99);
$(this).animate({
top: '50px',
left: '150px',
width: '700px',
height: '585px'
}, 500
);
// create the side navbar squares
$("li").not(this).css("z-index", 3);
$("li").not(this).animate({
left: '10px',
width: '140px',
height: '60px'
}, 500
);
// move the squares to create the side navbar
$("li").not(this).eq(0).animate({top:'50px'}, 1000, "easeOutExpo");
$("li").not(this).eq(1).animate({top:'125px'}, 1000, "easeOutExpo");
$("li").not(this).eq(2).animate({top:'200px'}, 1000, "easeOutExpo");
$("li").not(this).eq(3).animate({top:'275px'}, 1000, "easeOutExpo");
$("li").not(this).eq(4).animate({top:'350px'}, 1000, "easeOutExpo");
$("li").not(this).eq(5).animate({top:'425px'}, 1000, "easeOutExpo");
$("li").not(this).eq(6).animate({top:'500px'}, 1000, "easeOutExpo");
$("li").not(this).eq(7).animate({top:'575px'}, 1000, "easeOutExpo");
$("li").not(this).eq(8).animate({top:'650px'}, 1000, "easeOutExpo");
$("li").not(this).eq(9).animate({top:'725px'}, 1000, "easeOutExpo");
// animate the additional square around the main one
$("#title").delay(1000).queue(function(n) { // the title square gets the same color of the main container, an gets the the title from the class
$(this).html("<h1>" + title + "</h1>"); // the function queue allows me to delay the process of changing title when i click
n();
}).animate({
top: '-40px',
left: '400px',
width: '450px',
height: '70px',
backgroundColor: color
}, 1000);
$("#2").css("background-color", "#9090AF").delay(1400).animate({
top: '50px',
left: '870px',
width: '150px',
height: '70px'
}, 500);
$("#3").css("background-color", "#47477A").delay(800).animate({
top: '655px',
left: '270px',
width: '750px',
height: '70px'
}, 1000);
$("#4").css("background-color", "#A5264E").delay(700).animate({
top: '450px',
left: '870px',
width: '120px',
height: '70px'
}, 456);
if(wrapperheightanim > 1000){
$("#5").css("background-color", "#fff").delay(1000).animate({
top: '745px',
left: '270px',
width: '250px',
height: '70px'
}, 1000);
}
locid = window.location.hash.replace("!", "");
}
function animated2() {
var titletemp2 = $(locid).attr("id"); // save the id in a temp var
var title2=titletemp2.replace(/_/g, ' '); // I use the id as titles so i substitute underscores with spaces
var color2 = $(locid).css("background-color"); // save the bgcolor of the main square
// animation that bring every square to the start position
$("#about").animate({top:'200px', left:"0", height: "180px", width:"200px"}, 1000, "easeInOutBack");
$("#social_media").animate({top:'90px', left:"200px", height: "140px", width:"200px"}, 1000, "easeInOutBack");
$("#bd_package").animate({top:'90px', left:"400px", height: "140px", width:"200px"}, 1000, "easeInOutBack");
$("#services").animate({top:'230px', left:"200px", height: "130px", width:"560px"}, 1000, "easeInOutBack");
$("#portfolio").animate({top:'360px', left:"200px", height: "350px", width:"200px"}, 1000, "easeInOutBack");
$("#clients").animate({top:'360px', left:"400px", height: "220px", width:"200px"}, 1000, "easeInOutBack");
$("#contact").animate({top:'290px', left:"600px", height: "160px", width:"220px"}, 1000, "easeInOutBack");
$("#quote").animate({top:'230px', left:"760px", height: "60px", width:"60px"}, 1000, "easeInOutBack");
$("#blog").animate({top:'280px', left:"840px", height: "60px", width:"60px"}, 1000, "easeInOutBack");
$(".shape").animate({top:'200px', left:"200px", height: "0", width:"0"}, 1000, "easeInOutBack");
// remove the images from the rollover
$("img", "li").remove();
// create the main container
$(locid).css("z-index", 99);
$(locid).animate({
top: '50px',
left: '150px',
width: '700px',
height: '585px'
}, 500
);
// create the side navbar squares
$("li").not(locid).css("z-index", 3);
$("li").not(locid).animate({
left: '10px',
width: '140px',
height: '60px'
}, 500
);
// move the squares to create the side navbar
$("li").not(locid).eq(0).animate({top:'50px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(1).animate({top:'125px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(2).animate({top:'200px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(3).animate({top:'275px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(4).animate({top:'350px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(5).animate({top:'425px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(6).animate({top:'500px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(7).animate({top:'575px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(8).animate({top:'650px'}, 1000, "easeOutExpo");
$("li").not(locid).eq(9).animate({top:'725px'}, 1000, "easeOutExpo");
// animate the additional square around the main one
$("#title").delay(1000).queue(function(n2) { // the title square gets the same color of the main container, an gets the the title from the class
$(this).html("<h1>" + title2 + "</h1>"); // the function queue allows me to delay the process of changing title when i click
n2();
}).animate({
top: '-40px',
left: '400px',
width: '450px',
height: '70px',
backgroundColor: color2
}, 1000);
$("#2").css("background-color", "#9090AF").delay(1400).animate({
top: '50px',
left: '870px',
width: '150px',
height: '70px'
}, 500);
$("#3").css("background-color", "#47477A").delay(800).animate({
top: '655px',
left: '270px',
width: '750px',
height: '70px'
}, 1000);
$("#4").css("background-color", "#A5264E").delay(700).animate({
top: '450px',
left: '870px',
width: '120px',
height: '70px'
}, 456);
if(wrapperheightanim > 1000){
$("#5").css("background-color", "#fff").delay(1000).animate({
top: '745px',
left: '270px',
width: '250px',
height: '70px'
}, 1000);
}
}
$("li").click(animated);
animated2();
});
as you can see the functions animated and animated2 are exactly the same with the difference
that one happens to the div when i click, one happens to a certain div when i load the page..hope with the code it's easier. my problem is how to write the function once and execute it once when i click on one element, and once when the page load on the specific element saved in the variable locid..

You can't do $('li div').animate() because your function is not a property of a jquery object (unless you implement it as so - like a plugin).
You can trigger the event click you just defined though:
$('li div').click(); // or $('li div').trigger('click');
This will execute your animatedevent handler attached with $("li div").click(animated);

Let's say your function looks like this:
function animate()
{
// do complex stuff to 2 DOM nodes
}
To run that function on whenever a <div> inside a <li> is clicked, do this:
$('li div').click(function() {
animate();
});
If you want to run animate when the page loads, do this:
$(function() {
animate();
});
Edit: On the other hand, if your function looks like this:
function animate(domElement)
{
// do complex stuff to domElement
}
To run that function on any <div> inside a <li>, when it is clicked, do this:
$('li div').click(function() {
animate(this);
});
And if you want to run the function on page load, on all the <div>s that are inside <li>s, do this:
$('li div').each(function(index, element) {
animate(element);
});