var urlI = "img/";
var loadedImages = new Array (
	"btnAboutNatalie_a.gif",
	"btnDivProcOptions_a.gif",
	"btnMediation_a.gif",
	"btnCollaboration_a.gif",
	"btnContactUs_a.gif",
	"btnLinks_a.gif");

function preloadImages() {

	var xImages = new Array ();
                      
 		for (i=0; i < loadedImages.length; i++) {
			xImages[i] = new Image ();
			xImages[i].src = urlI + loadedImages[i];
		}
}

function DoOver(iname) {	
	flag = (iname == undefined) ? 0 : 1;
	if(flag) nameButton = iname;
	document.images[nameButton].src = flag ? urlI+nameButton+"_a.gif" : urlI+nameButton+"_p.gif";
	if(!flag) nameButton = "";
}