var conacc = document.getElementsByClassName("ContractAccordion");
var j;

for (j = 0; j < conacc.length; j++) {
  conacc[j].addEventListener("click", function() {
    /* Toggle between adding and removing the "active" class,
    to highlight the button that controls the panel */
    this.classList.toggle("active");

    /* Toggle between hiding and showing the active panel */
    var ContractPanel = this.nextElementSibling;
    if (ContractPanel.style.display === "block") {
      ContractPanel.style.display = "none";
      conacc[j-1].innerHTML = "To read the contract information, click here";
    } else {
      ContractPanel.style.display = "block";
      conacc[j-1].innerHTML = "To hide the contract information, click here";
    }
  });
}