function preload() {
	// counter
	var i = 0;
    // create object
    imageObj = new Image();
	// set image list
    images = new Array();
    images[0]="home.gif";
	images[1]="home_on.gif";
    images[2]="info.gif";
    images[3]="info_on.gif";
	images[4]="forsale.gif";
    images[5]="forsale_on.gif";
	images[6]="maps.gif";
	images[7]="timberview.gif";
	images[8]="timverview_on.gif";
	images[9]="creekside.gif";
	images[10]="creekside_on.gif";
	images[11]="community.gif";
	images[12]="community_on.gif";
	images[13]="directions.gif";
	images[14]="directions_on.gif";
	images[15]="testimonials.gif";
	images[16]="testimonials_on.gif";
	images[17]="contact.gif";
	images[18]="contact_on.gif";
	images[19]="application.gif";
	images[20]="application_on.gif";
    // start preloading
    for(i=0; i<=18; i++) {
         imageObj.src=images[i];
    }
} 

function swap(image,imgName) {
	image.src='/images/'+imgName+'_on.gif';
	}
function restore(image,imgName) {
	image.src='/images/'+imgName+'.gif';
	}
	
function fsswap(imgName) {
	document.image.src = imgName;
	}
function fsrestore(imgName) {
	document.image.src = imgName;
	}
	
function validate(theForm){
  if (theForm.name.value == "")
  {
    alert("Please tell us your name.");
    theForm.name.focus();
    return (false);
  }
  if (theForm.followup.selectedIndex == 0)
  {
    alert("Please select how you would like us to contact you.");
    theForm.followup.focus();
    return (false);
  }
  if(theForm.followup.selectedIndex == 1){
  if (theForm.email.value == "")
  {
    alert("Please tell us your email address so we may contact you.");
    theForm.email.focus();
    return (false);
  } else {
    /* The following pattern is used to check if the entered e-mail address
       fits the user@domain format.  It also is used to separate the username
       from the domain. */
   var emailPat=/^(.+)@(.+)$/
    /* The following string represents the pattern for matching all special
      characters.  We don't want to allow special characters in the address. 
      These characters include ( ) < > @ , ; : \ " . [ ]    */
   var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
    /* The following string represents the range of characters allowed in a 
   username or domainname.  It really states which chars aren't allowed. */
   var validChars="\[^\\s" + specialChars + "\]"
    /* The following pattern applies if the "user" is a quoted string (in
       which case, there are no rules about which characters are allowed
       and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
      is a legal e-mail address. */
   var quotedUser="(\"[^\"]*\")"
    /* The following pattern applies for domains that are IP addresses,
       rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
       e-mail address. NOTE: The square brackets are required. */
   var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
    /* The following string represents an atom (basically a series of
       non-special characters.) */
   var atom=validChars + '+'
    /* The following string represents one word in the typical username.
       For example, in john.doe@somewhere.com, john and doe are words.
       Basically, a word is either an atom or quoted string. */
   var word="(" + atom + "|" + quotedUser + ")"
     // The following pattern describes the structure of the user
   var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
    /* The following pattern describes the structure of a normal symbolic
     domain, as opposed to ipDomainPat, shown above. */
   var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


     /* Finally, let's start trying to figure out if the supplied address is
     valid. */

     /* Begin with the coarse pattern to simply break up user@domain into
     different pieces that are easy to analyze. */
   var matchArray=theForm.email.value.match(emailPat)
   if (matchArray==null) {
      /* Too many/few @'s or something; basically, this address doesn't
      even fit the general mould of a valid e-mail address. */
      alert("Email address seems incorrect (check @ and .'s)")
    return false
   }
  var user=matchArray[1]
  var domain=matchArray[2]

  // See if "user" is valid 
  if (user.match(userPat)==null) {
    // user is not valid
    alert("The username doesn't seem to be valid.")
    return false
  }

  /* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
  var IPArray=domain.match(ipDomainPat)
  if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("Destination IP address is invalid!")
		return false
	    }
    }
   // return true
  }

  // Domain is symbolic name
  var domainArray=domain.match(domainPat)
  if (domainArray==null) {
	alert("The domain name doesn't seem to be valid.")
    return false
  }

  /* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */

  /* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
  var atomPat=new RegExp(atom,"g")
  var domArr=domain.match(atomPat)
  var len=domArr.length
  if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
   alert("The address must end in a three-letter domain, or two letter country.")
   return false
  }

  // Make sure there's a host name preceding the domain.
  if (len<2) {
    var errStr="This address is missing a hostname!"
    alert(errStr)
    return false
  }
 }
  }
  if(theForm.followup.selectedIndex == 2){
  var stripped = theForm.phone.value.replace(/[\(\)\.\-\ ]/g, '');
  //alert (stripped);
  if (!(stripped.length == 10)) {
	alert("Please check that your 10 digit phone number is correct.");
	theForm.phone.focus();
	return (false);
  }
  if (isNaN(stripped) == true) {
    alert("The phone number contains illegal characters.");
    theForm.phone.focus();
    return (false);
  }
  }
 }