var ajx;
var ajxbool;

try{
	ajx=new XMLHttpRequest();
	ajxbool=true;
} catch(e){
	ajx=new ActiveXObject("Microsoft.XMLHTTP");
	ajxbool=true;
}


function IsNumeric(strString)

   //  check for valid numeric strings	

   {

   var strValidChars = "0123456789.-";

   var strChar;

   var blnResult = true;



   if (strString.length == 0) return false;

   for (i = 0; i < strString.length && blnResult == true; i++)

      {

      strChar = strString.charAt(i);

      if (strValidChars.indexOf(strChar) == -1)

         {

         blnResult = false;

         }

      }

   return blnResult;

   }

function validateEmail(email) {
    var re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
}


function sortSelect(selElem) {
    var tmpAry = new Array();
    for (var i=0;i<selElem.options.length;i++) {
        tmpAry[i] = new Array();
        tmpAry[i][0] = selElem.options[i].text;
        tmpAry[i][1] = selElem.options[i].value;
    }
    tmpAry.sort();
    while (selElem.options.length > 0) {
        selElem.options[0] = null;
    }
    for (var i=0;i<tmpAry.length;i++) {
        var op = new Option(tmpAry[i][0], tmpAry[i][1]);
        selElem.options[i] = op;
    }
    return;
}
const schools = {
  "1": "Business Studies",
  "4": "Environmental Studies",
  "6": "Agricultural Science",
  "7": "Computing & ICT",
  "8": "Finance",
  "9": "Industrial Engineering Technology",
  "10": "Natural Resources Engineering",
  "11": "Pure and Applied Sciences"
};

function loadsch(){
	document.getElementById('sch').options.length = 0;
	var mx = document.getElementById("sch");
	var option = document.createElement("option");
	option.value = "none";
	option.innerHTML = "-select-";
	mx.add(option);
	
	for (const [value, label] of Object.entries(schools)) { 
	    const option = document.createElement("option"); 
	    option.value = value; option.innerHTML = label; 
	    mx.appendChild(option); 
	}
	sortSelect(mx);
}

const departmentsBySchool = {
  "1": [
    { value: "1", label: "Marketing" },
    { value: "31", label: "Public Administration" },
    { value: "7", label: "Liberal Studies" },
    { value: "6", label: "Procurement and Supply Chain Mgmt" },
    { value: "5", label: "Business Administration" }
  ],
  "4": [
    { value: "19", label: "Surveying & Geoinformatics" },
    { value: "28", label: "Art and Industrial Design" },
    { value: "20", label: "Urban and Regional Planning" },
    { value: "50", label: "Cartography and Geographic System" },
    { value: "18", label: "Quantity Surveying" },
    { value: "17", label: "Estate Management & Valuation" },
    { value: "16", label: "Building Technology" },
    { value: "15", label: "Architectural Technology" }
  ],
  "6": [
    { value: "39", label: "Agricultural Extension and Management" },
    { value: "9", label: "Agric Technology" },
    { value: "29", label: "Horticultural Technology" },
    { value: "12", label: "Fisheries Technology" },
    { value: "38", label: "Crop Production Technology" },
    { value: "37", label: "Animal Production Technology" }
  ],
  "7": [
    { value: "3", label: "Office Tech. Mgmt." },
    { value: "27", label: "Mass Communication" },
    { value: "32", label: "Library Science" },
    { value: "47", label: "Networking & Cloud Computing" },
    { value: "49", label: "Languages & Communication" },
    { value: "48", label: "Software Development" },
    { value: "21", label: "Computer Science" }
  ],
  "8": [
    { value: "26", label: "Taxation" },
    { value: "4", label: "Banking and Finance" },
    { value: "2", label: "Accountancy" }
  ],
  "9": [
    { value: "11", label: "Electrical Electronics" },
    { value: "13", label: "Mechanical Engineering" },
    { value: "36", label: "Mechatronics Engineering" },
    { value: "35", label: "Welding & Fabrication Engineering" }
  ],
  "10": [
    { value: "34", label: "Water Resources Engineering" },
    { value: "10", label: "Civil Engineering" },
    { value: "14", label: "Minerals & Petroleum Resources" },
    { value: "8", label: "Agric & Bio-Environmental" }
  ],
  "11": [
    { value: "22", label: "Food Science & Technology" },
    { value: "46", label: "Biochemistry" },
    { value: "45", label: "Physics with Electronics" },
    { value: "23", label: "Glass and Ceramics" },
    { value: "43", label: "Microbiology" },
    { value: "42", label: "Statistics" },
    { value: "41", label: "Mathematics" },
    { value: "24", label: "Mathematics and Statistics" },
    { value: "25", label: "Science Laboratory Technology" },
    { value: "33", label: "Hospitality & Tourism Management" },
    { value: "44", label: "Chemistry" }
  ]
};


function loaddept(schoolId) { 
    const deptSelect = document.getElementById("dept"); 
    deptSelect.options.length = 0; 
    // Add default "-All-" option 
    const defaultOption = document.createElement("option"); 
    defaultOption.value = "30"; 
    defaultOption.innerHTML = "-All-"; 
    deptSelect.add(defaultOption); 
    const departments = departmentsBySchool[schoolId]; 
    if (departments) { 
        departments.forEach(dept => { 
            const option = document.createElement("option"); 
            option.value = dept.value; 
            option.innerHTML = dept.label; 
            deptSelect.appendChild(option); 
        }); 
        sortSelect(deptSelect); 
    }
}

function payfee(){
 var fname=document.getElementById('fname').value;	
 var phone=document.getElementById('phone').value;	
 var email=document.getElementById('email').value;	
 var matno=document.getElementById('matno').value;	
 var sch=document.getElementById('sch').value;
 var dept=document.getElementById('dept').value;	
  var prog=document.getElementById('prog').value;
  var lga = document.getElementById('lga').value;
 
 if(matno.length<3){
	 alert("Please enter your matric number/registration no.");
	 exit;
 }
 
 if(fname.length<3){
	 alert("Please enter your full name.");
	 exit;
 }

var em=validateEmail(email);
	if(em==false){
		alert("Invalid email address.");
		exit;
	}

	if(!IsNumeric(phone)){
		alert('Unrecognized Phone Number.');
		exit;
	}
	
	if((phone.substring(6,10)=="00000") || (phone.length<11)){
		alert ("Invalid phone number.");
		exit;
	}

if(sch=="none"){
	alert("Choose your school!");
	exit;
}

if(dept=="none"){
	 alert("Choose your department!");
	 exit;
}

if(lga=="none"){
    alert("Choose your state and LGA!");
	 exit;
}

if(prog=="none"){
	 alert("Choose your programme!");
	 exit;
}

var conf=confirm("Are you sure you want to continue with the payment?");
if(conf==0){
	exit;
}
document.dataform.submit();

}


function payhostelfee(){
 var fname=document.getElementById('fname').value;	
 var phone=document.getElementById('phone').value;	
 var email=document.getElementById('email').value;	
 var matno=document.getElementById('matno').value;	
 var sch=document.getElementById('sch').value;
 var dept=document.getElementById('dept').value;	
 
 if(matno.length<3){
	 alert("Please enter your matric number/registration no.");
	 exit;
 }
 
 if(fname.length<3){
	 alert("Please enter your full name.");
	 exit;
 }

var em=validateEmail(email);
	if(em==false){
		alert("Invalid email address.");
		exit;
	}

	if(!IsNumeric(phone)){
		alert('Unrecognized Phone Number.');
		exit;
	}
	
	if((phone.substring(6,10)=="00000") || (phone.length<11)){
		alert ("Invalid phone number.");
		exit;
	}

if(sch=="none"){
	alert("Choose your school!");
	exit;
}

if(dept=="none"){
	 alert("Choose your department!");
	 exit;
}

if(document.getElementById('ch1').checked==false && document.getElementById('ch2').checked==false && document.getElementById('ch3').checked==false ){
	alert('Select hostel.');
	exit;
}

var conf=confirm("Are you sure you want to continue with the payment?");
if(conf==0){
	exit;
}
document.dataform.submit();

}

function verifyDetails(){
 var fname=document.getElementById('fname').value;	
 var phone=document.getElementById('phone').value;	
 var email=document.getElementById('email').value;	
 var matno=document.getElementById('matno').value;	
 var sch=document.getElementById('sch').value;
 var dept=document.getElementById('dept').value;	
  var prog=document.getElementById('prog').value;	
  var password1 = document.getElementById('password').value;
  var password2 = document.getElementById('password1').value;
  var dday = document.getElementById('day').value;
  var dmonth = document.getElementById('month').value;
  var dyear = document.getElementById('year').value;
  //alert(dday);
 
 if(matno.length<3){
	 alert("Invalid matriculation /registration number");
	 exit;
 }
 
 if(fname.length<3){
	 alert("Please enter your full name.");
	 exit;
 }
 
var em=validateEmail(email);
	if(em==false){
		alert("Invalid email address.");
		exit;
	}

	if(!IsNumeric(phone)){
		alert('Unrecognized Phone Number.');
		exit;
	}
	
	if((phone.substring(6,10)=="00000") || (phone.length<11)){
		alert ("Invalid phone number.");
		exit;
	}

if(sch=="none"){
	alert("Choose your school!");
	exit;
}

if(dept=="none"){
	 alert("Choose your department!");
	 exit;
}
if(dday=="0" || dmonth=="0" || dyear=="0")
{
    alert("Enter your date of birth please")
    exit;
}
if(prog=="none"){
	 alert("Choose your programme!");
	 exit;
}



if(password1!=password2){
	alert("Password mismatch!");
	document.getElementById('password1').value=''
	exit;
}

var conf=confirm("Proceed with Registration?");
if(conf==0){
	exit;
}
document.dataform.submit();

}