function verifyFields(fields) {
  rv = true;
  for (field in fields) {
    myName = 'd' + fields[field];
    if (document.getElementById(fields[field]).value == "") {
      document.getElementById('d' + fields[field]).style.color = 'red';
      rv = false;
    } else {
      document.getElementById('d' + fields[field]).style.color = 'white';
    }
  }
  if (rv == false) {
    var r = document.getElementById('Required');
    r.innerHTML = "* Required fields:";
    r.style.color="red";
  }
  return rv;
}

function loadForm(formNo) {
    switch(formNo)
    {
        case 1:
        {
            document.getElementById('formHolder').src = "purchase.html";
            break;
        }
        case 2:
        {
            document.getElementById('formHolder').src = "location.html"
            break;
        }
        case 3:
        {
            document.getElementById('formHolder').src = "distribute.html"
            break;
        }
        case 4:
        {
            document.getElementById('formHolder').src = "vendor.html"
            break;
        }
        case 5:
        {
            document.getElementById('formHolder').src = "supplier.html"
            break;
        }
        case 6:
        {
            document.getElementById('formHolder').src = "work.html"
            break;
        }
        case 7:
        {
            document.getElementById('formHolder').src = "invest.html"
            break;
        }
        case 8:
        {
            document.getElementById('formHolder').src = "chain.html"
            break;
        }
    }
    return false
}