var o;
var y = 'sea';
var sch;

function pausecomp(millis)
{
var date = new Date();
var curDate = null;

do { curDate = new Date(); }
while(curDate-date < millis);
} 

function timer(){
setTimeout('alert(\'Surprise!\')', 5000);
}

function reset_school(school){
if (school == "pschool")
document.getElementById('sschool').value=999999999;
else if (school == "sschool")
document.getElementById('pschool').value=9999;
}


function reset_both_schools(){
document.getElementById('sschool').value=999999999;
document.getElementById('pschool').value=9999;
document.test.U2.value="";
}

function makeDisable(sname){
var x;
	reset_school(sname);
x = document.getElementById(sname); 
x.style.display = 'none'; }

function makeEnable(sname){
	reset_school(sname);
var x=document.getElementById(sname);
x.style.display = 'inline';
}

function message(x,school){
	document.test.Username.value="";
if (x != null ){
o=x;
sch = school;
reset_school(sch);
d = o.length;
a = o.substr(0,3);
b = o.substr(0,4);
if (d == 9){
c = o.substr(3,8);
}
else {
c = x.substr(0,6);
}
if (((y=='cape') || (y=='csec')) && ((d == 9)||(d==6))){
document.getElementById('U2').value=c;}
else if ((y=='sea') && ((d==3)||(d==4)))
document.getElementById('U2').value=b;
else if ((y=='sea') && (d==9))
document.getElementById('U2').value=a;
else document.getElementById('U2').value= " ";
}

}
function set_y(z){
y=z;
message(o,sch);
if (z=='sea') {togglebox();
document.test.primbox[0].disabled = false;
makeDisable('usr_change');
makeDisable('usrn_change');
makeDisable('exam_change');
var r=document.getElementById('pwd');
r.style.display = 'none';
var s=document.getElementById('pwd2');
s.style.display = 'none';
document.getElementById("login").value="Proceed";
removeAllOptions(document.test.Year);
addOption(document.test.Year, "2007","2007");
addOption(document.test.Year, "2008","2008");
addOption(document.test.Year, "2009","2009");
}
else {//makeDisable('pschool');
document.test.primbox[1].checked = true;
togglebox();makeEnable('usr_change');
var r=document.getElementById('pwd');
r.style.display = 'inline';
var s=document.getElementById('pwd2');
s.style.display = 'inline';
document.getElementById("login").value="Log in";
}
if (z=='cape'){makeEnable('usr_change');
document.test.primbox[0].disabled = true;
removeAllOptions(document.test.Year);
addOption(document.test.Year, "2008","2008");
addOption(document.test.Year, "2009","2009");
}

if (z=='csec'){makeEnable('usr_change');
document.test.primbox[0].disabled = true;
removeAllOptions(document.test.Year);
addOption(document.test.Year, "2008","2008");
addOption(document.test.Year, "2009","2009");
} 
}

function addOption(selectbox,value,text )
{
	var optn = document.createElement("OPTION");
	optn.text = text;
	optn.value = value;
	selectbox.options.add(optn);
}

function removeOption(selectbox,va,tt )
{	var i;
	//document.write(selectbox.options.length-1);
	for(i=selectbox.options.length-1;i>=0;i--)
	 document.write(selectbox.options[i].value);
	//if(selectbox.options[i].value = "sea")
	//selectbox.remove(i);
}

function addOption_list(selectbox){
addOption(document.test.Exam, "sea","SEA");
addOption(document.test.Exam, "csec","CSEC");
addOption(document.test.Exam, "cape","CAPE");

}


function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}

function removeOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
	if(selectbox.options[i].selected)
	selectbox.remove(i);
	}
}

function set_up(){
makeDisable('usrn_change');
makeDisable('exam_change');
makeDisable('pwd');
makeDisable('pwd2');
makeDisable('sschool');

document.test.excel.checked = false;
document.test.primbox[0].checked = true;
document.test.primbox[1].checked = false;
document.test.sschool.value=999999999;
document.test.Username.value="";
document.test.pwd.value="";
addOption_list();
addOption(document.test.Year, "2007","2007");
addOption(document.test.Year, "2008","2008");
addOption(document.test.Year, "2009","2009");
}

function togglebox(listbox){

((document.test.primbox[0].checked) && (document.test.Exam.value == 'sea'))? makeEnable('pschool'): makeDisable('pschool');
(document.test.primbox[1].checked) ? makeEnable('sschool') : makeDisable('sschool');

}