if (document.images){
		var srub_off = new Array()
		var srub_on = new Array()
		for(i=1; i<eval(nbsrub + 1); i++){
			srub_off[i]  = new Image();
			srub_off[i].src  = "../img/" + theme + "bt" + i + "_f.gif";
			srub_on[i]  = new Image();
			srub_on[i].src  = "../img/" + theme + "bt" + i + "_o.gif";
		}
	}

	function over_srub(i,st){
		if (document.images){
			document.images['srub' + i].src = srub_on[i].src;
		}
		window.status = st;
	}

	function out_srub(i){
		if (document.images){
			if (i != srub)
				document.images['srub' + i].src = srub_off[i].src;
		}
		window.status = " ";
	}