function addEmailLink() {
  alert('The script gets called at least...');
  /*
	// If the user's browser does not support document.getElementById, then we may as well not execute the script:
	if(!document.getElementById) {
		return false;
	}
	
	// First, get a reference to the contentDiv we need to change:
	var contentDiv = document.getElementById('mainColumn');
	if (!contentDiv) {
  	alert('no');
		//return false;
	} else {
    alert('yes');	
  }
	
	
	// Define the text for the link:
	var linkText = document.createTextNode('Email to a friend');
	// Create the link itself:
	var linkMarkup = document.createElement('a');
	// Add the link text to the link:
	linkMarkup.appendChild(linkText);
	
	// Create the list item:
	var paragraphMarkup = document.createElement('p');
	
	// Define a subject for the email message:
	var emailSubject = escape('Have a look at this page at www.pwrdf.org');
	// Define the body for the email message:
	var emailBody = 'I thought you might like to see this page on the www.pwrdf.org website: ';
	
	// Build the whole link + add the current url to it:
	linkMarkup.href = 'mailto:?subject=' + emailSubject + '&body=' + emailBody + location.href;
	
	// Add the link into the list item:
	paragraphMarkup.appendChild(linkMarkup);
	// Add an id attribute to the list item so we can hang some styles on it:
	paragraphMarkup.id = 'emailnav';
	// Then add the link to the list:
	contentDiv.appendChild(paragraphMarkup);
	
	alert('The script reaches this point...');
	return true;
	*/
}

window.onload = addEmailLink;