function hide (obj,button,height)
{
if (obj.style.visibility=='hidden')
	{
	button.value="Hide" ;
	obj.style.visibility='visible';
	obj.style.height=height;
	}
else
	{
	button.value="Show" ;
	obj.style.visibility='hidden';
	obj.style.height='0';
	}
}
function enc (row)
{
//each row contains 23 element

var x=document.forms[0].elements[row].value;
var y=document.forms[0].elements[row+2].value;
var z=x^112;
if (z==y) 
{
alert("Password validated!");
var count=0;
var max;
for (var i=row+4;i<row+23;i=i+2)
	{
	if(document.forms[0].elements[i].value!=24)
		{
		var a=document.forms[0].elements[i].value;
		a=a^112;
		document.forms[0].elements[i-1].value=a;
		switch(count)
			{
			case 0:
						max=10;
						break;
			case 1:
						max=10;
						break;
			case 2:
						max=30;
						break;
			case 4:
						max=5;
						break;
			case 5:
						max=10;
						break;
			case 7:
						max=10;
						break;
			case 3:
						max=30;
						break;
			case 6:
						max=20;
						break;
			case 8:
						max=40;
						break;
			case 9:
						max=40;
						break;
			}
		if ( ( parseFloat(a)/parseFloat(max) )<=0.5 ) 
			document.forms[0].elements[i-1].style.background="#F29B8E";
					
		}
	else
		{
		document.forms[0].elements[i-1].style.background="#c0c0c0";
		document.forms[0].elements[i-1].value="N/A";
		}
	count++;
	}
}
else
alert("Sorry, invalid password");
}
function displayAnswer(i)
{
switch(i){
case 0: floating1.style.visibility="visible";
		break;
case 1: floating2.style.visibility="visible";
		break;
case 2: floating3.style.visibility="visible";
		break;
case 3: floating4.style.visibility="visible";
		break;
case 4: floating5.style.visibility="visible";
		break;
case 5: floating6.style.visibility="visible";
		break;
case 6: floating7.style.visibility="visible";
		break;
case 7: floating8.style.visibility="visible";
		break;


		}
}
function changepic(index,source)
{
document.images[index].src=source;
}
function nothing()
{

}
function closesubmenu(index)
{
document.forms[0].submenu.style.visibility="hidden";
document.images[index].src="./images/empcircle1.jpg";
}