function flipDiv() {
  document.getElementById("dataDIV").style.display = "none";
  document.getElementById("updateDIV").style.display = "block"; 
  document.getElementById("updateDataButton").style.backgroundColor = "#001e61"; 
  document.getElementById("displayDataButton").style.backgroundColor = "#d6d8db"; 
}

function flipBackDiv(){
  document.getElementById("dataDIV").style.display = "block";
  document.getElementById("updateDIV").style.display = "none"; 	
  document.getElementById("displayDataButton").style.backgroundColor = "#001e61"; 
  document.getElementById("updateDataButton").style.backgroundColor = "#d6d8db"; 
}