Hi currently i am adding safeguards to stop people mucking around with 
charts while the animation is taking place such as generating images of 
charts part way through the animation process, click the next button too 
quickly, etc. So far i managed to get buttons to be disabled by using an 
additional div to check when a chart is freshly created apparently there is 
no animation-finish trigger when you enter the dynamic mode from a fixed 
chart. 

*What i need now is to be to display those error message along the lines of 
"Loading Data" similar to the error messages with the red square when you 
put in bad data.. and remove it once the animation has finished.* Or 
perhaps i could do something more drastic?

     
     function drawChart() { 
     
     if(document.getElementById('patient0').innerHTML == 'First'){
     document.getElementById('patient0').innerHTML = 'NA'
     }
     else{
     document.getElementById('creator').disabled = true; 
     document.getElementById('saver').disabled = true;
     button.disabled = true;}


     google.visualization.events.addListener(chart, 'animationfinish', 
function() {
         
        document.getElementById('creator').disabled = false;
        document.getElementById('saver').disabled = false;
        button.disabled = false;
           });

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