function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		i_graphics_over = newImage("images/i_graph_act.gif");
		graphics_over = newImage("images/graph_act.gif");
		i_graphics_out = newImage("images/i_graph.gif");
		graphics_out = newImage("images/graph.gif");
		i_bw_over = newImage("images/i_bw_act.gif");
		bw_over = newImage("images/bw_act.gif");
		i_sketch_over = newImage("images/i_sketch_act.gif");
		sketch_over = newImage("images/sketch_act.gif");
		i_concept_over = newImage("images/i_concept_act.gif");
		concept_over = newImage("images/concept_act.gif");
		i_games_over = newImage("images/i_games_act.gif");
		games_over = newImage("images/games_act.gif");
		preloadFlag = true;
	}
}
function PopupImage(img) {
        titre="bb";
        w=open("",'image','width=1,height=1,toolbar=no,scrollbars=no,resizable=yes');
        w.document.write("<HTML><HEAD><TITLE>"+titre+"</TITLE></HEAD>");
        w.document.write("<SCRIPT language=javascript>function checksize()  { if (document.images[0].complete) {  window.resizeTo(document.images[0].width+12,document.images[0].height+45); window.focus();} else { setTimeout('check()',250) } }</"+"SCRIPT>");
        w.document.write("<BODY onload='checksize()' leftMargin=0 topMargin=0 marginwidth=0 marginheight=0 bgcolor=#ede0cb><IMG src='"+img+"' border=0>");
        w.document.write("");
        w.document.write("</BODY></HTML>");
        w.document.close();
}

