function myDateFormat(dt){
  var  dayno    =  dt.getDate() ;
  var  monthno  =  dt.getMonth() ;
  var  yearno   =  dt.getFullYear() ;
  
  var  daystr ;
  if       ((dayno == 1) 
            || 
            (dayno == 21)     
            || 
            (dayno == 31)
            )
            {daystr  =  dayno + "st"}
  else  if  ((dayno == 2)
             ||
             (dayno == 22)
            )
            {daystr  =  dayno + "nd"}  
  else  if  ((dayno == 3)
             ||
             (dayno == 23)
            )
            {daystr  =  dayno + "rd"}
  else      {daystr  =  dayno + "th"}
  
  if        (monthno ==  0)  {monthstr  =  "January"}
  else  if  (monthno ==  1)  {monthstr  =  "February"}
  else  if  (monthno ==  2)  {monthstr  =  "March"}
  else  if  (monthno ==  3)  {monthstr  =  "April"}
  else  if  (monthno ==  4)  {monthstr  =  "May"}
  else  if  (monthno ==  5)  {monthstr  =  "June"}
  else  if  (monthno ==  6)  {monthstr  =  "July"}
  else  if  (monthno ==  7)  {monthstr  =  "August"}
  else  if  (monthno ==  8)  {monthstr  =  "September"}
  else  if  (monthno ==  9)  {monthstr  =  "October"}
  else  if  (monthno == 10)  {monthstr  =  "November"}
  else  if  (monthno == 11)  {monthstr  =  "December"}    

  var dtstr  =  daystr + " " + monthstr + ", " + yearno
  
  return  dtstr
}

function doBlink() {
var blink = document.all.tags("BLINK")
for (var i=0; i<blink.length; i++)
	blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : ""
}

function startBlink() {
if (document.all)
	setInterval("doBlink()",1000)
}
window.onload = startBlink;

function clearError(id) {
	document.getElementById(id).style.visibility = "hidden";
}

function showError(id) {
	document.getElementById(id).style.visibility = "visible";
}

function warn(errors) {
	for (i = 0; i < errors.length; i++) {
		showError(errors[i]);
	}
}

function checkForInvalidCharacters(strInput) {
	var invalidChars = "?&=";
	for (var i = 0; i < invalidChars.length; i++) {
		strBadChar = invalidChars.charAt(i); //get next invalid character
		if (strInput.indexOf(strBadChar,0) > -1) return strBadChar; //if there is one in Email
	}
	return "";
}//checkForInvalidCharacters

function checkContactForm() {
	var form = document.contact;
	var errorCount = 0;
	var errors = new Array();
	
	
	var alerts = '';
	var digits = "0123456789";
	var digitsandletters = "0123456789abcdefghijklmnopqrstuvwxyz";
	
	var fullNameError = "false";
	if (form.full_name.value == ""){
		alerts += "Please fill in your full name.\n";
		fullNameError = "true";
	}
	if (fullNameError == "true") {
		errors[errorCount] = "fullNameError";
		errorCount++;
	}
	
	var emailError = "false";
	if (form.email_addr.value == "") {
		alerts += "Please enter your email address.\n";
		emailError = "true";
	}
	if ( form.email_addr.value.indexOf("@")<1 && form.email_addr.value!="" ) {
		alerts += "Please verify that your email address contains the '@' sign.\n";
		emailError = "true";
	}
	if ( form.email_addr.value.indexOf(" ")>=0 && form.email_addr.value!="" ) {
		alerts += "Please verify that your email address does not contain any spaces.\n";
		emailError = "true";
	}
	if ((form.email_addr.value.indexOf ('@',0) == -1 ||
		form.email_addr.value.indexOf ('.',0) == -1) &&
		form.email_addr.value != "") {
		alerts += "Please verify that your email address is valid.\n";
		emailError = "true";
	}
	strBadChar = checkForInvalidCharacters(form.email_addr.value);
	if (strBadChar.length > 0) {
		alerts = alerts + "Email Address cannot include the " + strBadChar + " character.\n";
		emailError = "true";
	}
	if (emailError == "true") {
		errors[errorCount] = "emailError";
		errorCount++;
	}
	
	var subject = form.subject.options[form.subject.selectedIndex].value;
	if (subject=="none"){
		alerts += "Please select subject from the drop-down list.\n";
		errors[errorCount] = "subjectError";
		errorCount++;
	}
	
	var commentsError = "false";
	if (form.comments.value == ""){
		alerts += "Please fill a comment.\n";
		commentsError = "true";
	}
	if (commentsError == "true") {
		errors[errorCount] = "commentsError";
		errorCount++;
	}
	
	if (alerts != ""){
		alert(alerts);
		warn(errors);
		return (false);
	} else {
		
		return (true);
	}
}//checkContactForm()