function addNotification()
	{

		var emailFieldElement = document.getElementById('notification_email_field');
		var buttonElement = document.getElementById('notification_button');
		
		if (emailFieldElement)
		{
			var email = emailFieldElement.value;
			
			//Check e-mail
			if (/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email))
 			{
   				//looks like a valid e-mail
   				
   				//disable the text field na mark the button as working
   				emailFieldElement.disabled = true;
   				
   				buttonElement.className = "feedback_vote_button_voting_in_progress";
       			buttonElement.innerHTML = "Subscribing...";
       			buttonElement.onmousedown = function() {  }; //do nothing
       			
       			var httpRequest = new XMLHttpRequest();
		
				url = "https://lostminds.com/lib/feedback/feedback_add_notification.php"		
				var params = "email="+email;
				httpRequest.open("POST", url, true);
				httpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
				
				//Call this code when the state of the request changes.
				httpRequest.onreadystatechange = function() 
				{
					if(httpRequest.readyState == 4 && httpRequest.status == 200) 
					{
					 	//alert("submit vote response: "+httpRequest.responseText);
	 
						 //change the vote button
						 if (buttonElement)
						 {
							buttonElement.className = "feedback_vote_button_has_voted";
							buttonElement.innerHTML = "<SVG class='feedback_vote_button_has_voted_icon'><use xlink:href='#feedback_vote_checkmark' /></SVG>Subscribed";
						 }
	 
					 //container.className = "entry_line_container"; //change to proper line if needed
					}
				}

				//Send the request!
				httpRequest.send(params);
		
			}
			else
			{
				alert("Please enter a valid e-mail address.");
			}
			
			
		}
		else
		{
			alert("addNotification error, no emailFieldElement found");
		}
		
			
		
	}
	
	
	function removeNotification()
	{
		var emailElement = document.getElementById('notification_email');
		var buttonElement = document.getElementById('notification_button');
		var messageElement = document.getElementById('notification_message');
		
		if (emailElement)
		{
			email = emailElement.innerHTML;
	
			//disable the text field na mark the button as working			
			buttonElement.className = "feedback_vote_button_voting_in_progress";
			buttonElement.innerHTML = "Working...";
			buttonElement.onmousedown = function() {  }; //do nothing
			
			var httpRequest = new XMLHttpRequest();
	
			url = "https://lostminds.com/lib/feedback/feedback_remove_notification.php"	
			var params = "email="+email;
			httpRequest.open("POST", url, true);
			httpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
			
			//Call this code when the state of the request changes.
			httpRequest.onreadystatechange = function() 
			{
				if(httpRequest.readyState == 4 && httpRequest.status == 200) 
				{
					//change the vote button
					if (buttonElement)
					{
						buttonElement.className = "feedback_vote_button_has_voted";
						buttonElement.innerHTML = "Unsubscribed";
						buttonElement.style.display = 'none';
					}

					if (messageElement)
					{
						messageElement.innerHTML = "You will not be notified if a feature you voted for is implemented. Reload the page if you want to subscribe again.";
					}
				 //container.className = "entry_line_container"; //change to proper line if needed
				}
			}

			//Send the request!
			httpRequest.send(params);
		
			
			
		}
		else
		{
			alert("Error: no e-mail element found.");
		}
		
	}
	
	function submitVote(feature_id)
	{
			
		var httpRequest = new XMLHttpRequest();
		//var url = "feedback_add_vote.php";
		url = "https://lostminds.com/lib/feedback/feedback_add_vote.php"		
		var params = "feature_id="+feature_id;
		httpRequest.open("POST", url, true);

		//Send the proper header information along with the request
		httpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

		var vote_button_element = document.getElementById('feedback_vote_button_'+feature_id);
		var vote_count_element = document.getElementById('feedback_feature_votes_'+feature_id);
		
		//mark in progress
		vote_button_element.className = "feedback_vote_button_voting_in_progress";
       	vote_button_element.innerHTML = "Voting...";
       	vote_button_element.onmousedown = function() { 
       	//do nothing
		};
       		 
		//Call this code when the state of the request changes.
		httpRequest.onreadystatechange = function() 
		{
   		 	if(httpRequest.readyState == 4 && httpRequest.status == 200) 
   		 	{
       		 //alert("submit vote response: "+httpRequest.responseText);
       		 
       		 //change the vote button
       		 if (vote_button_element)
       		 {
       			vote_button_element.className = "feedback_vote_button_has_voted";
       			vote_button_element.innerHTML = "<SVG class='feedback_vote_button_has_voted_icon'><use xlink:href='#checkmark' /></SVG>Voted";
       		 }
       		 
       		 //increate the vote count
       		 if (vote_count_element)
       		 {
       		 	vote_count_element.innerHTML = String(parseInt(vote_count_element.innerHTML) + 1);
       		 }
       		 //container.className = "entry_line_container"; //change to proper line if needed
    		}
		}
		
		//Send the request!
		httpRequest.send(params);
	}