function color_over()
{
	var time = document.getElementById('time');
	time.style.color='#cc6600';
	var roll = document.getElementById('roll');
	roll.style.color='#cc6600';
}
function color_out()
{
	var time = document.getElementById('time');
	time.style.color='#333399';
	var roll = document.getElementById('roll');
	roll.style.color='#333399';
}

function start_roll()
{
	if (course_string.length==0) return;
	var roll = document.getElementById('sproll');
	newText = document.createTextNode(course_string[course_counter]);
	if (roll.firstChild)
		roll.removeChild(roll.firstChild);
	roll.appendChild(newText);

	var time = document.getElementById('time');
	newText = document.createTextNode(course_date[course_counter]);
	if (time.firstChild)
		time.removeChild(time.firstChild);
	time.appendChild(newText);

	var link = document.getElementById('time_link');
	link.href = '?page='+course_link[course_counter];
	if (course_counter<course_string.length-1)
	{
		course_counter++;
	}
	else
		course_counter=0;

	window.setTimeout("start_roll()",5000);
}

var course_string = new Array();
var course_date = new Array();
var course_link = new Array();
var course_counter = 0;

function sem_color_over()
{
	var time = document.getElementById('sem_time');
	time.style.color='#cc6600';
	var roll = document.getElementById('sem_roll');
	roll.style.color='#cc6600';
}
function sem_color_out()
{
	var time = document.getElementById('sem_time');
	time.style.color='#333399';
	var roll = document.getElementById('sem_roll');
	roll.style.color='#333399';
}

function sem_start_roll()
{
	if (seminar_string.length==0) return;
	var roll = document.getElementById('sem_sproll');
	newText = document.createTextNode(seminar_string[seminar_counter]);
	if (roll.firstChild)
		roll.removeChild(roll.firstChild);
	roll.appendChild(newText);

	var time = document.getElementById('sem_time');
	newText = document.createTextNode(seminar_date[seminar_counter]);
	if (time.firstChild)
		time.removeChild(time.firstChild);
	time.appendChild(newText);

	var link = document.getElementById('sem_time_link');
	link.href = '?page='+seminar_link[seminar_counter];
	if (seminar_counter<seminar_string.length-1)
	{
		seminar_counter++;
	}
	else
		seminar_counter=0;

	window.setTimeout("sem_start_roll()",5000);
}

var seminar_string = new Array();
var seminar_date = new Array();
var seminar_link = new Array();
var seminar_counter = 0;

function start_roll_offer()
{
	if (offer_string.length==0) return;
	var urls = document.getElementById('offer_link');
	urls.href = offer_url[offer_counter];

	var image = document.getElementById('offer_image');
	image.src = offer_image[offer_counter];
	image.title = offer_string[offer_counter];
	image.alt = offer_string[offer_counter];

	if (offer_counter<offer_string.length-1)
	{
		offer_counter++;
	}
	else
		offer_counter=0;

	window.setTimeout("start_roll_offer()",5000);
}

var offer_string = new Array();
var offer_url = new Array();
var offer_image = new Array();
var offer_counter = 0;

function ShowList(tab)
{
	obj = document.getElementById(tab);
	if (obj.style.display == "none")
	{obj.style.display = "block";}
	else
	{obj.style.display ="none";}
}