var address = window.location + "";
var course = null;

function load(key) {
	if(key != 'notes' && key != 'reviews' && key != 'problems' && key != 'exams')
		document.getElementById('subMenu').src = key + '.html';
	else if(course == null)
		document.getElementById('subMenu').src = 'select.html';
	else
		document.getElementById('subMenu').src = key + '.html?' + course;
	
	if(document.getElementById('smiley') != null)
		document.getElementById('smiley').src = document.getElementById('smiley').src;
}

function scrollUp(key) {
	document.getElementById(key).contentWindow.scrollBy(0, -100);
}

function scrollDown(key) {
	document.getElementById(key).contentWindow.scrollBy(0, 100);
}