//var presentPicture;
//var defaultPicture = './images/illus1.jpg';

var pictures = new Array();

function preloadImages()
{
	pictures[0] = new Image();
	pictures[0].src = './images/intro_nl.jpg';

	pictures[1] = new Image();
	pictures[1].src = './images/intro_fr.jpg';
	
	pictures[2] = new Image();
	pictures[2].src = './images/intro_en.jpg';
	
	pictures[3] = new Image();
	pictures[3].src = './images/intro_de.jpg';

}

function changePicture(illustration)
{
	document.getElementById('illustration').src = pictures[illustration].src;
}

function setDefault()
{
	document.getElementById('illustration').src = pictures[0].src;
}