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Colorbox positioning on top of another element

I've got quite an issue with positioning of colorbox. The methods described on official website http://www.jacklmoore.com/colorbox/ are not quite enough for my purpose. The thing is that I have button opening the colorbox and I need to position it "over the button" (button is 50px height, colorbox is something about 700px height so I need to center it over the button (something like 300px top of the button).
I have tried basic repositioning with jquery in onOpen and onLoad function in colorbox like:
onOpen:function() {
$('#colorbox').removeAttr('top');
$('#colorbox').css('top','200px');
},
It works but colorbox settings automatically overwrite those settings right after onOpen or onLoad and colorbox is positioned in center of the viewport again.
So I am basically calling for help, colorbox positioning settings like top, left etc. are simply not enough for positioning on top of the button element.
Thanks in advance!
Edit: full code below
$(".reserve_").live('click',function() {
var loadUrl = $(this).attr("href");
$.colorbox({
innerWidth:660,
innerHeight:720,
returnFocus: true,
overlayClose: true,
fixed: false,
iframe: true,
href: loadUrl,
opacity: 0.6,
reposition: true,
onOpen:function() {
$('#colorbox').removeAttr('top');//test
$('#colorbox').css('top','200px');//test
},
onLoad: function() {
$('#colorbox').removeAttr('top');//test
$('#colorbox').css('top','200px');//test
},
onClosed:function() {
}
});
return false;
});
EDIT 2: link on jsfiddle: http://jsfiddle.net/zS8J8/8/ (sorry about the messy code in CSS and HTML)

The jsfiddle was helpful, I was able to use the same code as you and get it working.
This was tested in firefox 20, chrome 26, IE 9 on Win 7. The "Open Colorbox" link isn't visible in IE using your HTML, but if you move your mouse in that area, you'll see the cursor change and if you click, Colorbox will open in the correct location.
Here's the HTML, I changed class="rezervuj" to id="rezervuj" because we're keying on a single element rather than a bunch of images:
<h3 style="margin-bottom: 300px;">TOP OF THE PAGE</h3>
<div class="unitKontejner">
<div style="float:right;">
<a id="rezervuj" href="http://www.imgur.com">
<div class="reserveIt">
<div class="reserveIt-content">
open colorbox »
</div>
</div>
</a>
</div>
</div>
Here's the script that you can put in the head:
<script>
$(document).ready(function(){
// I removed the options that were set to the default.
// The top and left can be left out or set to a default,
// I used them as a test to see the difference when the event hook is used.
$("#rezervuj").colorbox({
iframe:true,
innerWidth:660,
innerHeight:720,
opacity: 0.6,
top: 0,
left: 0
});
// Use the "cbox_complete" event hook.
// It allows the colorbox div to be positioned after it opens,
// but before the content is loaded.
$(document).bind('cbox_complete', function(){
// Grab the position of the button,
// colorbox can be positioned relative to it.
var pos = $(rezervuj).position();
//console.log(pos);
// Set the position of the colorbox div
// You can add to or subtract from the pos values
// Example: top: (pos.top + 20) + "px"
$("#colorbox").css({
position: "absolute",
top: pos.top + "px",
left: pos.left + "px"
}).show();
});
});
</script>

you can also try this.
$.colorbox({
width: "600px", height: "500px", inline: false, overlayClose: false, escKey: true, iframe: true,
onComplete: function () {
$('#colorbox').removeAttr('top');//test
$('#colorbox').css('top', '100px');//test
$('#colorbox').removeAttr('display');//test
$('#colorbox').css('display', 'block');//test
},
onLoad: function () {
$('#colorbox').removeAttr('display');//test
$('#colorbox').css('display', 'none');//test
},
});

Retaining "height" declaration in jQuery after an Ajax call (dropdown selection loads product data, resets height on other page elements)

I have some jQuery setting a height on product descriptions, this can be seen here:
https://www.gabbyandlaird.com/product/truition-products/truition-healthy-weight-loss-pack
The code I'm using to achieve this is:
$(document).ready(function() {
var $dscr = $('.commerce-product-field-field-long-description'),
$switch = $('#toggle'),
$initHeight = 70; // Initial height
$dscr.each(function() {
$.data(this, "realHeight", $(this).height()); // Create new property realHeight
}).css({ overflow: "hidden", height: $initHeight + 'px' });
$switch.toggle(function() {
$dscr.animate({ height: $dscr.data("realHeight") }, 200);
$switch.html("- Read More").toggleClass('toggled');
}, function() {
$dscr.animate({ height: $initHeight}, 200);
$switch.html("+ Read More").toggleClass();
});
});
I am by no means a Javascript expert (or even an amateur for that matter). My knowledge of jQuery is fairly limited, so I'm not sure what needs to be changed above so that when the dropdown selection reloads the data on the page, I don't lose the height value on the "Read More" section of the product description. Any assistance is greatly appreciated. Thanks!

as per your code above it looks you are doing everything when the document is ready.
here is what you can do.
var initialHeight = function(){
// you height initialization code here
}
$(function () {
$(document).ready(initialHeight); // initializes the height on document ready
$("#yourSelectBox").change(initialHeight); // initializes the height on combobox selection change
});
hope this helps.

Todays Special: How is this done? Is there a jquery plugin or product to do it?

I saw this technique at the bottom of a web page where the TAB stays in place at the bottom of the page and can be opened and closed to display more info. I assume it can be rotated to display a different special for different days. Can you point me to anything like it or explain the technique ? thanks. Here is a sample: http://www.tmdhosting.com/ look at the bottom of the page .

position: fixed is how you manage to keep something at the bottom or top of the page, regardless of scrolling.
This is easily discoverable using firebug's (http://getfirebug.com/) inspect element feature

You can check out my version of this at uxspoke.com
I wrote a jQuery plugin to do it, and calling it is straightforward:
$('#about').pulloutPanel({open:true}).
click(function() { $(this).trigger('toggle'); }) });
I basically instrument the panel to support "open", "close" events, and the implement the appropriate animations around them. The only "hard" part is getting the height right. It also supports "toggle" so you can add a generic click handler to it to open or close it. Finally, it uses opened/closed classes to keep track of its current state. That's it!
The code's pretty coupled to the technologies on the page (Csster) and the design it is in, so I'm not sure it will work for you. You can either use Csster, or just put the CSS rules into your stylesheet and remove them from the code. The important Css attributes are the positioning and bottom.
Here it is:
$.fn.pulloutPanel = function(options) {
var settings = $.extend({}, {
attachTo: 'bottom',
css: {
left: 0,
minHeight: 390,
border: '1px 1px 1px 0 solid #666',
has: [roundedCorners('tr', 10),boxShadow([0,0], 10, phaseToColor('requirements').saturate(-30).darken(50))],
cursor: 'pointer'
}, options);
return $(this).each(function() {
var $this = $(this);
$this.addClass('pullout_panel');
$this.bind('open', function(event) {
$this.animate({bottom: 0}, 'slow', 'easeOutBounce', function() {
$this.removeClass('closed').addClass('opened');
$this.trigger('opened');
});
});
$this.bind('close', function(event) {
var height = $this.innerHeight();
$this.animate({bottom: -height + 50}, 'slow', 'easeOutBounce', function() {
$this.addClass('closed').removeClass('opened');
$this.trigger('closed');
});
});
$this.bind('toggle', function(event) {
$this.trigger($this.hasClass('opened') ? 'close' : 'open');
});
once(function() {
Csster.style({
'.pullout_panel': {
position: 'fixed',
bottom: 0,
has: [settings.css]
}
});
});
$this.trigger(settings.open ? 'open' : 'close');
});
};

jquery - get position problem in Firefox

I have the following code which gets the left and top position of the element you are hovered over. It produces the right results in safari and IE but fails to get the position of the img that you hover over in Firefox - it returns 0, 0. Can anyone see why this might be??
I think it might be something to do with setting it as the variable as it seems to work if I place it straight in the function. I need to set it as a variable though so it can return to its original state.
$.fn.hoverAnimationTwo = function () {
return $(this).each(function () {
var originalLeftTwo = parseInt($(this).css("left"));
var originalTopTwo = parseInt($(this).css("top"));
return $(this).hover(function () {
$(this).animate({
width: "17px",
height: "17px",
left: originalLeftTwo - 5,
top: originalTopTwo - 5
}, 100);
},function () {
$(this).animate({
width: "7px",
height: "7px",
left: originalLeftTwo,
top: originalTopTwo
}, 100);
});
});
}
$(".myImg").hoverAnimationTwo();
The other thing which is very odd is that I can copy all of my code into jsfiddle and it seems to work.
EDIT:
OK... so it turns out this isn't a javascript issue as such. It is because elsewhere in the page I had given an element a class beginning with a numeric character which is entirely my bad and I should know better!

Browsers seem to have some inconsistencies when relying on CSS properties. Have you tried using .position() or .offset() (whichever is applicable to your needs)?
http://api.jquery.com/offset/ or http://api.jquery.com/position/

Shade entire page, unshade selected elements on hover

I'm trying to make a page inspection tool, where:
The whole page is shaded
Hovered elements are unshaded.
Unlike a lightbox type app (which is similar), the hovered items should remain in place and (ideally) not be duplicated.
Originally, looking at the image lightbox implementations, I thought of appending an overlay to the document, then raising the z-index of elements upon hover. However this technique does not work in this case, as the overlay blocks additional mouse hovers:
$(function() {
window.alert('started');
$('<div id="overlay" />').hide().appendTo('body').fadeIn('slow');
$("p").hover(
function () {
$(this).css( {"z-index":5} );
},
function () {
$(this).css( {"z-index":0} );
}
);
Alternatively, JQueryTools has an 'expose' and 'mask' tool, which I have tried with the code below:
$(function() {
$("a").click(function() {
alert("Hello world!");
});
// Mask whole page
$(document).mask("#222");
// Mask and expose on however / unhover
$("p").hover(
function () {
$(this).expose();
},
function () {
$(this).mask();
}
);
});
Hovering does not work unless I disable the initial page masking. Any thoughts of how best to achieve this, with plain JQuery, JQuery tools expose, or some other technique? Thankyou!

What you can do is make a copy of the element and insert it back into the DOM outside of your overlay (with a higher z-index). You'll need to calculate its position to do so, but that's not too difficult.
Here is a working example.
In writing this I re-learned the fact that something with zero opacity cannot trigger an event. Therefore you can't use .fade(), you have to specifically set the opacity to a non-zero but very small number.
$(document).ready(function() { init() })
function init() {
$('.overlay').show()
$('.available').each(function() {
var newDiv = $('<div>').appendTo('body');
var myPos = $(this).position()
newDiv.addClass('available')
newDiv.addClass('peek')
newDiv.addClass('demoBorder')
newDiv.css('top',myPos.top+'px')
newDiv.css('left',myPos.left+'px')
newDiv.css('height',$(this).height()+'px')
newDiv.css('width',$(this).width()+'px')
newDiv.hover(function()
{newDiv.addClass('full');newDiv.stop();newDiv.fadeTo('fast',.9)},function()
{newDiv.removeClass('full');newDiv.fadeTo('fast',.1)})
})
}

Sorry for the prototype syntax, but this might give you a good idea.
function overlay() {
var div = document.createElement('div');
div.setStyle({
position: "absolute",
left: "0px",
right: "0px",
top: "0px",
bottom: "0px",
backgroundColor: "#000000",
opacity: "0.2",
zIndex: "20"
})
div.setAttribute('id','over');
$('body').insert(div);
}
$(document).observe('mousemove', function(e) {
var left = e.clientX,
top = e.clientY,
ele = document.elementFromPoint(left,top);
//from here you can create that empty div and insert this element in there
})
overlay();