// JScript File
function ValidateParentRegForm(){
    var frm = document.frmParentRegForm;
    var sendForm = true;
    if (frm.firstname.value == ""){
        alert("Please enter your first name.")
        sendForm=false;
    }
    else if (frm.lastname.value == ""){
        alert("Please enter your last name.")
        sendForm=false;
    }
    else if (frm.email.value == ""){
        alert("Please enter your email address.")
        sendForm=false;
    }
    else if (ValidateEmail(frm.email.value)!=""){
        alert("Please enter a valid email address.")
        sendForm=false;
    }
    else if (frm.studentname1.value == ""){
        alert("Please enter your student's name.")
        sendForm=false;
    }
    else if (frm.birthdate1.value == ""){
        alert("Please enter your student's birthdate.")
        sendForm=false;
    }
    else if (isDate(frm.birthdate1.value) == false){
		sendForm = false;
	}
	else if (frm.birthdate2.value != "" && isDate(frm.birthdate2.value) == false){
		sendForm = false;
	}
	else if (frm.birthdate3.value != "" && isDate(frm.birthdate3.value) == false){
		sendForm = false;
	}
	else if (frm.birthdate4.value != "" && isDate(frm.birthdate4.value) == false){
		sendForm = false;
	}
	
        
    return sendForm;
}

function ValidateStudentForm(){
    var frm = document.frmStudentForm;
    var sendForm = true;
    if (frm.studentname1.value == ""){
        alert("Please enter your student's name.")
        sendForm=false;
    }
    else if (frm.birthdate1.value == ""){
        alert("Please enter your student's birthdate.")
        sendForm=false;
    }
    else if (isDate(frm.birthdate1.value) == false){
		sendForm = false;
	}
        
    return sendForm;
}

function ValidateAdminForm(frm)
{
    var sendForm = true;
    
    if (checkRadio(frm.Enabled) == false){
        alert("Please accept or reject the parent's registration.");
        sendForm = false;
    }
    else if (radioValue(frm.Enabled) == 1){
        if (frm.ExpirationDate.value == ""){
            alert("Please fill in the expiration date.");
            sendForm = false;
        }
    	if (isDate(frm.ExpirationDate.value) == false){
			sendForm = false;
		}
    }
    return sendForm;
}

function ValidateParentUpdateForm(frm){
    var sendform = false;
    if (ValidateAdminForm(frm)){
        if (ValidateParentRegForm){
            sendform = true;
        }
    }
    return sendform;
}

function ValidateAdminUserForm(frm,type){
	var sendForm = true;
	if (frm.username == ""){
		alert("Please enter a username.");
		sendForm = false;
	}
	else if (frm.email.value == ""){
        alert("Please enter your email address.")
        sendForm=false;
    }
    else if (ValidateEmail(frm.email.value)!=""){
        alert("Please enter a valid email address.")
        sendForm=false;
    }
	if (type == "insert"){
		if (frm.Password.value == "") {
			alert("Please enter a new password.");
			sendForm = false;
		}
		else if (frm.Password.value != frm.Password2.value){
			alert("New Password and Verify Password are not the same.");
			sendForm = false;
		}
	}
	return sendForm;
}


function ValidatePasswordForm(frm){
    var valid = true;
	if (frm.Password.value == "") {
		alert("Please enter a new password.");
		valid = false;
	}
	else if (frm.Password.value != frm.Password2.value){
		alert("New Password and Verify Password are not the same.");
		valid = false;
	}
    return valid;
}

function checkRadio(radio){
var myOption = -1;
for (i=radio.length-1; i > -1; i--) {
    if (radio[i].checked) {
    myOption = i; i = -1;
    }
}
if (myOption == -1) {
    return false;
    }
else
    return true;
}

function radioValue(radio){
	var myOption = -1;
	var myValue;
	for (i=radio.length-1; i > -1; i--) {
		if (radio[i].checked) {
		myOption = i; i = -1;
		}
	}
	if (myOption == -1) {
		myValue = "";
		}
	else
		myValue = radio[myOption].value;
	
	return myValue;
}

function ConfirmDeleteStudent(sid){
    if (confirm("Are you sure you want to delete this student?")){
        document.frmDeleteStudent.studentid.value = sid;
        document.frmDeleteStudent.submit();
    }
    return false;
}

function ConfirmDeleteAdminUser(sid){
    if (confirm("Are you sure you want to delete this user?")){
        document.frmDeleteAdminUser.userid.value = sid;
        document.frmDeleteAdminUser.submit();
    }
    return false;
}

function ConfirmDeleteParent(sid){
    if (confirm("Are you sure you want to delete this parent?")){
        document.frmDeleteParent.parentid.value = sid;
        document.frmDeleteParent.action.value = 'deleteparent';
        document.frmDeleteParent.submit();
    }
    return false;
}

function ConfirmDeletePage(){
    if (confirm("Are you sure you want to delete this page? All information will be lost.")){
        document.frmDeletePage.submit();
    }
}

/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year

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){
	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");
		return false;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day");
		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");
		return false;
	}
return true;
}


function ValidateEmail (emailStr)
{
	/* *** 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 +")*$")


	/* *** Begin with the coarse pattern to simply break up user@domain into
	   different pieces that are easy to analyze. */
	var matchArray=emailStr.match(emailPat)
	
	// *** disabled for now because all varchar fields in db are 255
	//if (emailStr.length > 50)
	//{
	//	return "Email address cannot be more than 50 characters in length!"
	//}
	
	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. */
		return "Email address seems incorrect (check @ and .'s)"
	}

	var user=matchArray[1]
	var domain=matchArray[2]

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

	/* 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)
	    	{
				return "Destination IP address is invalid!"
	    	}
    	}
    	
	    return ""
	}

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

	/* *** 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.
   		return "The address must end in a three-letter domain, or two letter country."
	}

	// *** Make sure there's a host name preceding the domain.
	if (len<2)
	{
   		return "This address is missing a hostname!"
	}

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