// JavaScript Document

var counter = 0;
var numBoxes = 3;
function toggle4(showHideDiv) {
       var ele = document.getElementById(showHideDiv + counter);
       if(ele.style.display == "block") {
              ele.style.display = "none";
       }
       else {
              ele.style.display = "block";
       }
       if(counter == numBoxes) {
                document.getElementById("toggleButton").style.display = "none";
       }
}