function init () {
	div_heights ();
}
function div_heights () {
	var divcontenu = document.getElementById("contenu");
	var divnavigation = document.getElementById("navigation");
	if (!divcontenu || !divnavigation) return false;
	var myHeight = (divcontenu.offsetHeight>divnavigation.offsetHeight) ? divcontenu.offsetHeight : divnavigation.offsetHeight;
	divcontenu.style.height = myHeight+'px';
	divnavigation.style.height = myHeight+'px';
}

function swapimage (img, src1, src2) {
	var image = document.getElementById(img);
	if (image) {
		image.src = (image.src.match(src1)) ? '/images/'+src2 : '/images/'+src1;
	}
}

window.onload = function() {
	init();
}