Jquery posting to MySQL via php - help

Hi,

I have a ‘to do’ item in a page that has an ID attached to it. These items are stored in a database. When clicked I want to reverse the ‘state’ of the item (active to complete or complete to active) by updating the database using jquery & PHP.

I think I almost have it. As all the values are collected ok and if I change the the page that writes to the database to GET and pass the data through the URL it updates the database fine.

Where am I going wrong?

/*//////   My items HTML /////////*/
<li id="todosArray_<?php echo $row['todo_id']; ?>" class="todo <?php echo $row['statename']; ?>"><a href"" id="<?php echo $row['todo_id']; ?>"><?php echo $row['text'] " - " . $row['todo_id']; ?></a></li>

/*////// my JQUERY function
$('.todo a').click(function() {
								
		// get toto id 
		var todoID     		= $(this).attr("id");  
		 alert(todoID);
		 
			  if($(this).parent().hasClass('active')){
				alert("active");
				var todoState = '1';
			  }
			  
			   if($(this).parent().hasClass('complete')){
				alert("complete");
				var todoState = '2';
			  }
 			
				$.ajax({  
					type: "POST",  
					url: "functions/todos-state.php",  
					data: "todoID="+todoID+"&todoState="+todoState,  
					success:function(data_response){
						alert(data_response);
						alert(todoID);
						alert(todoState);
}  
				});  
			return false;  
			  
    });  

 
/*///// my todos-state.php

$todoID  = htmlspecialchars(trim($_POST["todoID"]));
$todoState = htmlspecialchars(trim($_POST["todoState"]));
 
 $query = "UPDATE todos SET state_id = " . $todoState . " WHERE id = " . $todoID . "";
		mysql_query($query) or die('Error, insert query failed');
	

Not sure what happened to my PHP code for the MySQL update but here it is…

 $todoID  = htmlspecialchars(trim($_POST["todoID"]));
    $todoState = htmlspecialchars(trim($_POST["todoState"]));
 
  
		$query = "UPDATE todos SET state_id = " . $todoState . " WHERE id = " . $todoID . "";
		mysql_query($query) or die('Error, insert query failed');

I now have this working so if anyone is interested let me know.