function hover(id) {
	var img;

	switch (id)
	{
	case "persoon":
		img = "index_hover_03.png";
		break;
	case "missie":
		img = "index_hover_06.png";
		break;
	case "contact":
		img = "index_hover_08.png";
		break;
	case "toetsen":
		img = "index_hover_04.png";
		break;
	case "leiding":
		img = "index_hover_07.png";
		break;
	case "interim":
		img = "index_hover_09.png";
		break;
	}
	document.getElementById(id).src = "./images/" + img;
} 

function rest(id) {
	var img;

	switch (id)
	{
	case "persoon":
		img = "index_03.png";
		break;
	case "missie":
		img = "index_06.png";
		break;
	case "contact":
		img = "index_08.png";
		break;
	case "toetsen":
		img = "index_04.png";
		break;
	case "leiding":
		img = "index_07.png";
		break;
	case "interim":
		img = "index_09.png";
		break;
	}
	document.getElementById(id).src = "./images/" + img;
}