// JavaScript Document


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

function hideme(){
	myEffect.toggle()
}


function hideErrorMessage() {
	if (llIsError) {
var myErrorMessage = document.getElementById("ErrorMessage")
	myErrorMessage.innerHTML = "";
	llIsError = false;
	}
}

function setErrorMessage(){
	var myErrorMessage = document.getElementById("ErrorMessage")
	myErrorMessage.innerHTML = "Error! Some fields contain invalid data formats. Please re-enter. (Close this message)";
	llIsError = true;
}


	
function ValidatePhoneNo(boxIdentObj,llWithFeedback) {
if (isInteger(boxIdentObj.value)) {
	return true;
} else {
if (llWithFeedback) {
	 boxIdentObj.style.color = '#FF0000' ;	
     boxIdentObj.value = 'Invalid Tel. number! (' + boxIdentObj.value + '). Please re-enter.';	
}
return false;
}
}

function ValidateAnyEmail(boxIdentObj,llWithFeedback){
	
	if (IsEmpty(boxIdentObj)){
  } else {
     if (ValidateEmail(boxIdentObj.value))	{
         }else{
			 if (llWithFeedback) {
		 boxIdentObj.style.color = '#FF0000' ;	
         boxIdentObj.value = 'Invalid E-mail Address! (' + boxIdentObj.value + '). Please re-enter.';	
			 }
}
}
}

function ClearEmailBox(boxIdentObj) {
if (ValidateEmail(boxIdentObj.value)){
	} else {
		ClearBox(boxIdentObj);
	}
}

function ClearPhone(boxIdentObj) {
	if (ValidatePhoneNo(boxIdentObj,false)){
	} else {
		ClearBox(boxIdentObj);
	}

}

function ClearPCBox(boxIdentObj) {
if (ValidatePC(boxIdentObj,false)){
	} else {
		ClearBox(boxIdentObj);
	}
}

function ClearDateBox(boxIdentObj) {
	if (ValidateDate(boxIdentObj,false)){
	} else {
		ClearBox(boxIdentObj);
	}
}


function ClearBox(boxIdent){
boxIdent.value = '';
boxIdent.style.color = '#000000';
hideErrorMessage()
}

function ValidateDate(aTextDate,llWithFeedback){
	
if (IsEmpty(aTextDate)){
	return (true);
  } else {
	  if (isDate(aTextDate.value)) {
		  return (true);
	  } else {
	  if (llWithFeedback){
	aTextDate.style.color =	'#FF0000' ;  
	aTextDate.value = 'Invalid date format';
	  }
	  }
	return (false);  
  }
return (true);
}

function ValidateEmail(aEmailAddress) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(aEmailAddress)){
return (true)
}
return (false)
}

function ClickAdd() {
	alert("asdad");
	var mymess = document.getElementById('ddData'); 
	if (IsEmpty(mymess.emailtoadd)){
  } else {
     if (ValidateEmail(mymess.emailtoadd.value))	{
          mymess.aiFld__friends.value += mymess.emailtoadd.value + '\n'; 
         mymess.emailtoadd.value = '' ; 
         }else{
		 mymess.emailtoadd.style.color = '#FF0000' ;	
          mymess.emailtoadd.value = 'Invalid E-mail Address! (' +  mymess.emailtoadd.value + ')Please re-enter.';	
}
}
}

function IsEmpty(aTextField) {
   if ((aTextField.value.length==0) ||
   (aTextField.value==null)) {
      return true;
   }
   else { return false; }
}	

function clicksubmit(){
	var llErrors
	llErrors = 	ValidateForm()
	if (llErrors) {
		setErrorMessage()
	}
	else
	{
		document.ddData.submit()
	}
	
	}

function ClickClear(formIdent){ 
  var form, elements, i, elm; 
  
  var ddData = document.getElementById('ddData'); 
  ddData.clear;
   form = document.getElementById 
    ? document.getElementById(formIdent) 
    : document.forms[formIdent]; 
	ddData.friends.value = '';
	if (document.getElementsByTagName)
	{
		elements = form.getElementsByTagName('input');
		for( i=0, elm; elm=elements.item(i++); )
		{
			if (elm.getAttribute('type') == "text")
			{
				elm.value = '';
			}
		}
	}

	// Actually looking through more elements here
	// but the result is the same.
	else
	{
		elements = form.elements;
		for( i=0, elm; elm=elements[i++]; )
		{
			if (elm.type == "text")
			{
				elm.value ='';
			}
		}
	}
}

function ValidatePC(ooPcBoxObject,llWithFeedback){
var myRegEx = "^([A-PR-UWYZ0-9][A-HK-Y0-9][AEHMNPRTVXY0-9]?[ABEHMNPRVWXY0-9]? {1,2}[0-9][ABD-HJLN-UW-Z]{2}|GIR 0AA)$";
if (IsEmpty(ooPcBoxObject)){
	return true;
	} else {
	if (RegExMatch(myRegEx,ooPcBoxObject)){
		} else {
			if(llWithFeedback){
	ooPcBoxObject.style.color = '#FF0000' ;	
    ooPcBoxObject.value = 'Invalid Postcode. Please re-enter.';	
			}
			return false;
	}
}
return true;
}

function RegExMatch(aaRegExp,oTextObject) {
  var re = new RegExp(aaRegExp);
  if (oTextObject.value.match(re)) {
    return true;
  } else {
    return false;
  }
}






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 strDay=dtStr.substring(0,pos1)
	var strMonth=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){
		
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		
		return false
	}
return true
}


function ValidateForm(){
	
	var ddData = document.getElementById('ddData'); 
	var llReturn;
	
	llReturn = false;
	
	if (!ValidateDate(ddData.dob,true)){
	llReturn = true
	}

	if (IsEmpty(ddData.dob)){
	llReturn = true;
		}
	
	if (IsEmpty(ddData.fname)){
	llReturn = true;
		}
		
		if (IsEmpty(ddData.Lname)){
	llReturn = true;
		}
		if (IsEmpty(ddData.add1)){
	llReturn = true;
		}
		if (!ValidatePC(ddData.pc,true)){
	llReturn = true;
	}
		if (IsEmpty(ddData.pc)){
	llReturn = true;
		}
		
		if (ValidateEmail(ddData.email,true)){
	llReturn = true;
	}
	
		if (IsEmpty(ddData.email)){
	llReturn = true;
	}
	return llReturn
	
}

function clicksubmitschool(){
	var llErrors
	llErrors = 	ValidateFormSchool()
	if (llErrors) {
		setErrorMessage()
	}
	else
	{
		document.ddData.submit()
	}
	
	}



function ValidateFormSchool(){
	
	var ddData = document.getElementById('ddData'); 
	var llReturn;
	
	llReturn = false;
	
	
	if (IsEmpty(ddData.school)){
	llReturn = true;
		}
	
	if (IsEmpty(ddData.fname)){
	llReturn = true;
		}
		
		if (IsEmpty(ddData.Lname)){
	llReturn = true;
		}
		if (IsEmpty(ddData.add1)){
	llReturn = true;
		}
		if (!ValidatePC(ddData.pc,true)){
	llReturn = true;
	}
		if (IsEmpty(ddData.pc)){
	llReturn = true;
		}
		
		if (ValidateEmail(ddData.email,true)){
	llReturn = true;
	}
	
		if (IsEmpty(ddData.email)){
	llReturn = true;
	}
	return llReturn
	
}