function prepareHiddenInformation() {
	if (!document.getElementsByTagName) return false;	// Checks to make sure this function exists. Halts execution of script if not
	if (!document.getElementById) return false;	// Checks to make sure this function exists. Halts execution of script if not
	if (!document.getElementsByClassName('hidden_content')) return false;	// Checks to make sure this function exists. Halts execution of script if not
	
	var $hidden_content_boxes = document.getElementsByClassName('hidden_content');	// Gets list of all elements with class of 'hidden_content'
	for (var $i=0; $i<$hidden_content_boxes.length; $i++) {	// loops through the whole list...
		var $hidden_content_box = $hidden_content_boxes[$i];	// allocates each element to a variable (for easier reading)
		
		var $link = document.createElement('a');	// creates the toggle action link
		$link.onclick = function() {	// give the link an action when it is clicked. This action is as follows:
			if (this.getAttribute('status') == 'open') {	// if the link has a 'status' (internal variable) of 'open' the continue to close it, otherwise skip next 9 lines
				$hidden_content_box_id = this.getAttribute('rel');	// get the id of the box to be hidden from the link which has been clicked (each link is associated to a box)
				$hidden_content_box = document.getElementById($hidden_content_box_id);	// get the actual element to be hidden by its ID
				$hidden_content_box.style.display = 'none';	// give this element a CSS declaration of display:none; to hide it
				
				this.className = 'information_link closed';	// NEW: CHANGE CLASS OF LINK
				
				this.setAttribute('status','closed');	// update the link's status variable to 'closed'
				var $old_text = this.childNodes[0];	// get the old text (within the link element)
				this.removeChild($old_text);	// delete this old link text
				var $text = document.createTextNode('Show reviews');	// create new text saying 'More Information >>>'
				this.appendChild($text);	// Insert the new text within the link element
			}
			else {	// if the link does not have a 'status' (internal variable) of 'open' then it must be closed already. Continue to open it, otherwise skip next 9 lines
				$hidden_content_box_id = this.getAttribute('rel');	// get the id of the box which is no longer to be hidden from the link which has been clicked (each link is associated to a box)
				$hidden_content_box = document.getElementById($hidden_content_box_id);	// get the actual element no longer to be hidden by its ID
				$hidden_content_box.style.display = 'block';	// give this element a CSS declaration of display:block; to show it
				
				this.className = 'information_link open';	// NEW: CHANGE CLASS OF LINK
	
				this.setAttribute('status','open');	// update the link's status variable to 'open'
				var $old_text = this.childNodes[0];	// get the old text (within the link element)
				this.removeChild($old_text);	// delete this old link text
				var $text = document.createTextNode('Hide reviews');	// create new text saying 'Less Information <<<'
				this.appendChild($text);	// Insert the next text within the link element
			}
		}

		$link.setAttribute('title','Information');	// Give the link a non-specific title attribute
		$link.className = 'information_link';	// Give the link a class (for CSS styling)
		var $hidden_content_box_id = 'hidden_content'+$i;	// Create unique string 'hidden_content#' where '#' represents a unique integer and assign it to a variable
		$hidden_content_box.setAttribute('id',$hidden_content_box_id);	// Set the unique ID of the content as the unique value (above).
		$link.setAttribute('rel',$hidden_content_box_id);	// Set the 'rel' attribute with the same unique ID as above. This creates our associative connection between the link and the box it controls.
		var $text = document.createTextNode('Show reviews');	// Create a text string 'More Information >>>'. This will act as a default link text when inserted into the link (below)
		$link.appendChild($text);	// Set the link text from the string (above)
		var $parent = $hidden_content_box.parentNode;	// Get the content box's parent element and assign it to a variable
		$parent.insertBefore($link,$hidden_content_boxes[$i]);	// Insert the link into the parent element, directly before the content box which will be hidden
	}
}


// Executes the prepareHiddenInformation function when page loads
window.onload = function() {
	prepareHiddenInformation();
}


// Function to return a list of elements with a specific class attribute
document.getElementsByClassName = function($class) {
	var $results = Array();
	var $elements = document.getElementsByTagName("*");
	for (var $i=0; $i<$elements.length; $i++) {
		var $classes = $elements[$i].className.split(" ");
		for (var $j=0; $j<$classes.length; $j++) {
			if ($classes[$j] == $class) {
				$results[$results.length] = $elements[$i];
			}
		}
	}
	return $results;
}


// In order to pass the safety checks this section must appear AFTER the getElementsByClassName function (above)
if (document.getElementsByTagName && document.getElementsByClassName) {
	// Create a link to the Javascript-only stylesheet, which will primarily hide the hidden text
	var $link_element = document.createElement('link');
	$link_element.setAttribute("rel","stylesheet");
	$link_element.setAttribute("href","../../css/javascript_only.css");
	$link_element.setAttribute("media","screen");
	
	// Append this stylesheet link to the document
	var $head_element = document.getElementsByTagName('head')[0];
	$head_element.appendChild($link_element);
}