function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}

var preloadFlag = false;
function preloadImages() {  if (document.images) {
    nav1r = newImage("images/nav1_r.gif"); 
    nav2r = newImage("images/nav2_r.gif");
    nav3r = newImage("images/nav3_r.gif");
    nav4r = newImage("images/nav4_r.gif");
    nav5r = newImage("images/nav5_r.gif");
    nav6r = newImage("images/nav6_r.gif");
    nav7r = newImage("images/nav7_r.gif");
    nav8r = newImage("images/nav8_r.gif");
    sitemapr = newImage("images/sitemap_r.gif");
    preloadFlag = true;
  }
  //redirects browser if NN4
  if (document.layers)
   {
    window.location="sorry.html";
   }
}

//declare variables
var oTxtName, oTxtAddress, oTxtCity, oTxtState, oTxtZip, oTxtEmail

function init()
//define objects
{
   oTxtName = document.forms["formInfo"].elements["Name"]
   oTxtAddress = document.forms["formInfo"].elements["Address"]
   oTxtCity = document.forms["formInfo"].elements["City"]
   oTxtState = document.forms["formInfo"].elements["State"]
   oTxtZip = document.forms["formInfo"].elements["ZIP"]
   oTxtEmail = document.forms["formInfo"].elements["Email"]
}

//Validate the form
function validateForm()
{
   //text boxes
   //name
   if(oTxtName.value == "" || oTxtName.value == " ")
   {
      alert('Please enter your name');
      return false;
   }

   //address
   if(oTxtAddress.value == "" || oTxtAddress.value == " ")
   {
      alert('Please enter your address');
      return false;
   }

   //city name
   if(oTxtCity.value == "" || oTxtCity.value == " ")
   {
      alert('Please enter your City');
      return false;
   }
    
   //state name         
   if(oTxtState.value == "" || oTxtState.value == " ")
   {
      alert("Please enter your State");
      return false;
   }
 
   //zip code
   if(oTxtZip.value == "" || oTxtZip.value == " ")
   {
      alert('Please enter your Zip Code');
      return false;
   }
   
   //email code
   if(oTxtEmail.value == "" || oTxtEmail.value == " ")
   {
      alert('Please enter your Email address');
      return false;
   }

}