var digitsInUSPhoneNumber = 10;
var defaultEmptyOK = false

function reformat (s)

{   var arg;
    var sPos = 0;
    var resultString = "";

    for (var i = 1; i < reformat.arguments.length; i++) {
       arg = reformat.arguments[i];
       if (i % 2 == 1) resultString += arg;
       else {
           resultString += s.substring(sPos, sPos + arg);
           sPos += arg;
       }
    }
    return resultString;
}

function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function isWhitespace (s)

{   var i;

    // Is s empty?
    if (isEmpty(s)) return true;

    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);

        if (whitespace.indexOf(c) == -1) return false;
    }

    // All characters are whitespace.
    return true;
}

function isEmail (s)
{   if (isEmpty(s)) 
   
    // is s whitespace?
    if (isWhitespace(s)) return false;
    
    // there must be >= 1 character before @, so we
    // start looking at character position 1 
    // (i.e. second character)
    var i = 1;
    var sLength = s.length;

    // look for @
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    }

    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;

    // look for .
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    }

    // there must be at least one character after the .
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}

function validNUM(string) {
    for (var i=0, output='', valid="1234567890"; i<string.length; i++)
       if (valid.indexOf(string.charAt(i)) != -1)
          output += string.charAt(i)
    return output;
} 

function isInteger (s)

{   var i;

    if (isEmpty(s)) 
       if (isInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isInteger.arguments[1] == true);

    // Search through string's characters one by one
    // until we find a non-numeric character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);

        if (!isDigit(c)) return false;
    }

    // All characters are numbers.
    return true;
}

function isDigit (c)
{   return ((c >= "0") && (c <= "9"))
}

function ValidateContact(F) {
	if (isEmpty(F.Name.value)) {
		alert ("You must enter your Name!");
		return false;
	}
	if (!isEmail(F.Email.value, false))  {
		alert ("You must enter a valid Email address!");
		return false;
	}
	if (isEmpty(F.Title.value)) {
		alert ("You must enter a Title!");
		return false;
	}
	if (isEmpty(F.Title.value)) {
		alert ("You must enter a Title!");
		return false;
	}
	if (isEmpty(F.ArticleText.value)) {
		alert ("You must enter in Text!");
		return false;
	}
}

function validateForm(F) {

	if (isEmpty(F.FirstName.value)) {
		alert ("You must enter your First Name!");
		return false;
	}

	if (isEmpty(F.LastName.value)) {
		alert ("You must enter your Last Name!");
		return false;
	}

	if (isEmpty(F.Organization.value)) {
		alert ("You must enter your Organization!");
		return false;
	}

	if (isEmpty(F.Address1.value)) {
		alert ("You must enter your Address!");
		return false;
	}

	if (isEmpty(F.City.value)) {
		alert ("You must enter your City!");
		return false;
	}

	if (isEmpty(F.State.value)) {
		alert ("You must enter your State!");
		return false;
	}

	if (isEmpty(F.Zip.value)) {
		alert ("You must enter your Zip!");
		return false;
	}

	if (F.Phone.value!="") {
		F.Phone.value = validNUM(F.Phone.value);
		F.Phone.value= F.Phone.value.replace(/[-,(,), ]/, "");
	
		if (!(isInteger(F.Phone.value)) || !(F.Phone.value.length == 10))
			{
			alert ("You must enter a valid Phone number!")
			return false;
			}
		else
			F.Phone.value	= reformat(F.Phone.value, "(", 3, ") ", 3, "-", 4)
	} else {
		alert ("You must enter a valid Phone number!")
		return false;
	}

	if (F.Fax.value!="") {
		F.Fax.value = validNUM(F.Fax.value);
		F.Fax.value= F.Fax.value.replace(/[-,(,), ]/, "");
	
		if (!(isInteger(F.Fax.value)) || !(F.Fax.value.length == 10))
			{
			alert ("You must enter a valid Fax number!")
			return false;
			}
		else
			F.Fax.value	= reformat(F.Fax.value, "(", 3, ") ", 3, "-", 4)
	}

	if (!isEmail(F.Email.value, false))  {
		alert ("You must enter a valid email address!");
		return false;
	}
	
	var re = /'/
	var EscAps = "`";
	for(i=0;i<F.elements.length;i++){
		UserInput = F.elements(i).value;
		UserInput = UserInput.replace(re,EscAps);
		F.elements(i).value = UserInput;
	}
}
function validateAdminForm(F) {

	if (isEmpty(F.FirstName.value)) {
		alert ("You must enter your First Name!");
		return false;
	}

	if (isEmpty(F.LastName.value)) {
		alert ("You must enter your Last Name!");
		return false;
	}

	if (isEmpty(F.Organization.value)) {
		alert ("You must enter your Organization!");
		return false;
	}

	if (isEmpty(F.Address1.value)) {
		alert ("You must enter your Address!");
		return false;
	}

	if (isEmpty(F.City.value)) {
		alert ("You must enter your City!");
		return false;
	}

	if (isEmpty(F.State.value)) {
		alert ("You must enter your State!");
		return false;
	}

	if (isEmpty(F.Zip.value)) {
		alert ("You must enter your Zip!");
		return false;
	}

	if (F.Phone.value!="") {
		F.Phone.value = validNUM(F.Phone.value);
		F.Phone.value= F.Phone.value.replace(/[-,(,), ]/, "");
	
		if (!(isInteger(F.Phone.value)) || !(F.Phone.value.length == 10))
			{
			alert ("You must enter a valid Phone number!")
			return false;
			}
		else
			F.Phone.value	= reformat(F.Phone.value, "(", 3, ") ", 3, "-", 4)
	} else {
		alert ("You must enter a valid Phone number!")
		return false;
	}

	if (F.Fax.value!="") {
		F.Fax.value = validNUM(F.Fax.value);
		F.Fax.value= F.Fax.value.replace(/[-,(,), ]/, "");
	
		if (!(isInteger(F.Fax.value)) || !(F.Fax.value.length == 10))
			{
			alert ("You must enter a valid Fax number!")
			return false;
			}
		else
			F.Fax.value	= reformat(F.Fax.value, "(", 3, ") ", 3, "-", 4)
	}
	
	var re = /'/
	var EscAps = "`";
	for(i=0;i<F.elements.length;i++){
		UserInput = F.elements(i).value;
		UserInput = UserInput.replace(re,EscAps);
		F.elements(i).value = UserInput;
		}

}