var picnum = 1;
var arrowl0,arrowl1,arrowr0,arrowr1;
var min = 1,max = 26;
var first = true;

function start()
{
if (first)
	{
	arrowl0.visibility = "visible";
	arrowr0.visibility = "visible";
	set();
	first = false;
	}
}

function loadpics()						//0 = default, 1 = over
{
arrowl0 = document.getElementById("pfl0").style;
arrowl1 = document.getElementById("pfl1").style;
arrowr0 = document.getElementById("pfr0").style;
arrowr1 = document.getElementById("pfr1").style;
}

function mover(x)
{
if (x == "l" && picnum != 1)
	{
	arrowl1.visibility = "visible";
	arrowl0.visibility = "hidden";
	}
if (x == "r" && picnum != 26)
	{
	arrowr1.visibility = "visible";
	arrowr0.visibility = "hidden";
	}
}

function mout(x)
{
if (x == "l")
	{
	arrowl1.visibility = "hidden";
	arrowl0.visibility = "visible";
	}
if (x == "r")
	{
	arrowr1.visibility = "hidden";
	arrowr0.visibility = "visible";
	}
}

function cup()
{
if (picnum < max)
	{
	picnum++;
	set()
	}
}

function cdown()
{
if (picnum > min)
	{
	picnum--;
	set()
	}
}

function set()
{
document.mainpic.src = "ct2003/ct2003-"+ picnum +".jpg";
}