Aurora Dot

Display a red dot on your position on the aurora forecast website

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name       Aurora Dot
// @namespace  http://www.swpc.noaa.gov/products/aurora-30-minute-forecast
// @version    1.0
// @description Display a red dot on your position on the aurora forecast website
// @include        http://www.swpc.noaa.gov/products/aurora-30-minute-forecast
// @copyright  2012+, TKWE
// ==/UserScript==

var x = 333;
var y = 563;

var matchingElements = [];
var divElements = document.getElementsByTagName('div');

for (var i = 0; i < divElements.length; i++)
{
  if (divElements[i].className == 'block block-delta-blocks block-page-title block-delta-blocks-page-title even block-without-title')
  {
    // Element exists with attribute. Add to array.
    matchingElements.push(divElements[i]);
  }
}

matchingElements[0].innerHTML = matchingElements[0].innerHTML.replace('</div>\n  </div>','</div>\n  </div>\n<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==" style="position: absolute; top: '+y+'px; left: '+x+'px; height: 4px; width: 4px; z-index:5;"/>');