docs: function get_get_computed_style_function(element) {
  	// The proper getComputedStyle implementation is the one defined in the element window
  	if(element.ownerDocument.defaultView && typeof element.ownerDocument.defaultView.getComputedStyle === 'function') return element.ownerDocument.defaultView.getComputedStyle;
  	// If it is not available, try to get one from the global namespace
  	if(typeof getComputedStyle === 'function') return getComputedStyle;
  	return null;
  }