// function to join mail list
function joinMailingList()
{

    var xmlhttp;
    var emailField = document.getElementById("email");
    var formDiv = document.getElementById("newsletterForm");

    if( emailCheck(emailField.value) )
    {
	try
		{
			// Moz supports XMLHttpRequest. IE uses ActiveX.
			// browser detction is bad. object detection works for
			//any browser
			xmlhttp = window.XMLHttpRequest?new XMLHttpRequest():
				new ActiveXObject("Microsoft.XMLHTTP");
		}
	catch (e)
		{
			// browser doesn't support ajax.
		}

          
        var sURL = "/common/newsletter.php?email=" + emailField.value;

        // open
        xmlhttp.open( "POST", sURL, false );

        // Execute the request
        xmlhttp.send(null);

        if (xmlhttp.responseText == "1")
        {
            alert("Sorry - there was an error processing your request.");
        }
        else
        {
            // hide form div
            formDiv.innerHTML = "<p><strong>Thanks for signing up!</strong></p>";
        }
    }
    
} // end joinMailingList



// admin form validation


// val for image upload
function valGalleryImage(){
	if (document.forms[0].binimage.value.length==0)
	{
	alert('Please select an Image from your harddrive to upload.');
	document.forms[0].binimage.focus();
	return (false);
	}

else return true;
}

// val for login
function valchangelogin(form) {
	if (document.forms[0].username.value.length==0 || document.forms[0].username.value.length < 5)
	{
	alert('Please enter a Username that is atleast 5 characters long.');
	document.forms[0].username.focus();
	return (false);
	}

	if (document.forms[0].pass.value.length==0 || document.forms[0].pass.value.length < 5)
	{
	alert('Please enter a Password that is atleast 5 characters long.');
	document.forms[0].pass.focus();
	return (false);
	}

	if (document.forms[0].passconf.value.length==0)
	{
	alert('Please confirm your password.');
	document.forms[0].passconf.focus();
	return (false);
	}

	if (document.forms[0].pass.value != document.forms[0].passconf.value)
	{
	alert('Your passwords do not match. Try Again.');
	document.forms[0].pass.focus();
	return (false);
	}
else return true;
}

// val for login
function vallogin(form) {
if (document.forms[0].u.value.length==0)
	{
	alert('Please enter your Username.');
	document.forms[0].u.focus();
	return (false);
	}

	if (document.forms[0].p.value.length==0)
	{
	alert('Please enter your password.');
	document.forms[0].p.focus();
	return (false);
	}
else return true;
}

// val for news
function valnews(form) {
	if (document.forms[0].title.value.length==0)
	{
	alert('Please enter the Title for the News item.');
	document.forms[0].title.focus();
	return (false);
	}

	if (document.forms[0].content.value.length==0)
	{
	alert('Please enter some content.');
	document.forms[0].content.focus();
	return (false);
	}

else return true;
}

// val for Gallery
function valGallery(form){
	if (document.forms[0].title.value.length==0)
	{
	alert('Please enter a Name for this Photo Gallery.');
	document.forms[0].title.focus();
	return (false);
	}
	
	if (document.forms[0].content.value.length==0)
	{
	alert('Please enter a Description for this Photo Gallery.');
	document.forms[0].content.focus();
	return (false);
	}

else return true;
}




// val for content detail
function valcontentdetail(form) {
	if (document.forms[0].title.value.length==0)
	{
	alert('Please enter the Title for the Section of this Page.');
	document.forms[0].title.focus();
	return (false);
	}

	if (document.forms[0].content.value.length==0)
	{
	alert('Please enter some content.');
	document.forms[0].content.focus();
	return (false);
	}

else return true;
}

// val for content
function valcontent(form) {



	if (document.forms[0].name.value.length==0)
	{
	alert('Please enter the Name of the Page.');
	document.forms[0].name.focus();
	return (false);
	}

	if (document.forms[0].title.value.length==0)
	{
	alert('Please enter the Title for the page.');
	document.forms[0].title.focus();
	return (false);
	}

	if (isProper(document.forms[0].name.value) == false)
	{
	alert('The name of the page can not contain any spaces or special characters.\n Please Try Again.');
	document.forms[0].name.focus();
	return (false);
	}


else return true;
}

function isProper(string) {

   if (!string) return false;
   var iChars = "*|,\":<>[]{}`\';()@&$#%\\ ?";

   for (var i = 0; i < string.length; i++) {
      if (iChars.indexOf(string.charAt(i)) != -1)
         return false;
   }
   return true;
}

// val for staff
function valstaff(form) {
	if (document.forms[0].first_name.value.length==0)
	{
	alert('Please enter the user\'s First Name.');
	document.forms[0].first_name.focus();
	return (false);
	}

	if (document.forms[0].last_name.value.length==0)
	{
	alert('Please enter the user\'s Last Name.');
	document.forms[0].last_name.focus();
	return (false);
	}

	if (document.forms[0].utype.selectedIndex==0)
	{
	alert('Please select the user\'s type.');
	document.forms[0].utype.focus();
	return (false);
	}

	if (document.forms[0].ugroup.selectedIndex==0)
	{
	alert('Please select the user\'s group assignment.');
	document.forms[0].ugroup.focus();
	return (false);
	}

else return true;
}


//val for newsletter upload
function valnewsletter(form) {
	if (document.forms[0].title.value.length==0)
	{
	alert('Please enter a Title for the Newsletter.');
	document.forms[0].title.focus();
	return (false);
	}

	if (document.forms[0].newsletterdate.value.length==0)
	{
	alert('Please enter a Date for the Newsletter.');
	document.forms[0].newsletterdate.focus();
	return (false);
	}

	if (isDate(document.forms[0].newsletterdate.value)==false)
	{
		document.forms[0].newsletterdate.focus()
		return false
	}

else return true;
}


function confirmDeleteGeneric()
{
var agree=confirm("Are you sure you want to permanently remove this item?");
if (agree)
return true ;
else
return false ;
}

function TR_OnMouseOver(srcEle) {
if (srcEle.style.backgroundColor != "highlight")
srcEle.style.backgroundColor = "cornsilk";
}
function TR_OnMouseOut(srcEle) {
if (srcEle.style.backgroundColor == "cornsilk")
srcEle.style.backgroundColor = "";
}



// form validation for calendar

function valcalendar(form){

// enter dates
var startDate = document.forms[0].start_month.value + '/' + document.forms[0].start_day.value + '/' + document.forms[0].start_year.value
var endDate = document.forms[0].end_month.value + '/' + document.forms[0].end_day.value + '/' + document.forms[0].end_year.value

if (isDate(startDate,'Start Date')==false){
	return false;
}

if (document.forms[0].end_month.value.length > 0){
	if (isDate(endDate,'End Date')==false){
		return false;
	}
}

if (document.forms[0].title.value.length==0){
	alert("Please enter the Title for the event.");
	document.forms[0].title.focus();
	return (false);
}

/*
if (document.forms[0].post_date.value.length==0){
	alert("Please enter the date of the event.");
	document.forms[0].post_date.focus();
	return (false);
}

if (document.forms[0].content.value.length==0){
	alert("Please enter the content for the event.");
	document.forms[0].content.focus();
	return (false);
}
*/

else return true;
}


var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr,sType){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : mm/dd/yyyy")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month for the " + sType)
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day for the " + sType)
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date for the " + sType)
		return false
	}
return true
}


function emailCheck (emailStr) {

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD.  1 means check it, 0 means don't. */

var checkTLD=1;

/* The following is the list of known TLDs that an e-mail address must end with. */

var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* 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=emailStr.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];

// Start by checking that only basic ASCII characters are in the strings (0-127).

for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
alert("Ths username contains invalid characters.");
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("Ths domain name contains invalid characters.");
return false;
   }
}

// 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.  Check if it's valid.

var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
alert("The domain name does not seem to be valid.");
return false;
   }
}

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

if (checkTLD && domArr[domArr.length-1].length!=2 &&
domArr[domArr.length-1].search(knownDomsPat)==-1) {
alert("The address must end in a well-known domain or two letter " + "country.");
return false;
}

// Make sure there's a host name preceding the domain.

if (len<2) {
alert("This address is missing a hostname!");
return false;
}

// If we've gotten this far, everything's valid!
return true;
}


// end validation for calendar