function changeProject(_index){
	var _banner= document["project"];
	_banner.switchTo(_index);
}

/* Quand un switch de langue; permet de demeurer dans la même page 
 */
var link_nodes = document.getElementsByTagName('link');
for (var i = 0; i < link_nodes.length; i++) {
	if (link_nodes[i].type == 'alternate' && link_nodes[i].hreflang) {
		document.getElementById('alternate-lang').href = link_nodes[i].href;
	}
}

/* short and quick tab navigation,
 * only one per page.
 */
var tabs = document.getElementById('tabs');
if (tabs) {
	var tabs_anchors = tabs.getElementsByTagName('a');
	var selected_tab = null;
	for (var i = 0; i < tabs_anchors.length; i++) {
		tabs_anchors[i]._tabid = tabs_anchors[i].href.split('#')[1];
		tabs_anchors[i].onclick = function() {
			if (selected_tab) {
				selected_tab.style.display = 'none';
				selected_tab._anchor.className = '';
			}
			selected_tab = document.getElementById(this._tabid);
			selected_tab.style.display = 'block';
			selected_tab._anchor = this;
			selected_tab._anchor.className = 'selected';
			return false;
		}
		if (i == 0) {
			selected_tab = document.getElementById(tabs_anchors[0]._tabid);
			selected_tab._anchor = tabs_anchors[0];
			selected_tab._anchor.className = 'selected';
		} else {
			document.getElementById(tabs_anchors[i]._tabid).style.display = 'none';
		}
	}
}

/* Preloading images
 */
 
var images = [
	'logo-on.fr.gif', 'logo-on.en.gif',
	'menu-about-on.en.gif', 'menu-about-on.fr.gif', 
	'menu-products-on.en.gif', 'menu-products-on.fr.gif',
	'menu-itv-on.en.gif','menu-itv-on.fr.gif', 
	'menu-mobility-on.en.gif', 'menu-mobility-on.fr.gif', 
	'menu-web-on.en.gif', 'menu-web-on.fr.gif',
	'menu-games-on.en.gif', 'menu-games-on.fr.gif'
];
 
for (var i = 0; i < images.length; i++) {
	var image_name = images[i];
	images[i] = new Image();
	images[i].src = 'css/images/' + image_name;
}