function ch(name,add){
	if(document.images){
		document.images[name].src=add;
	}
}

function win(add,w,h){
ww=window.open(add,'win','scrollbars=1,resizable=1,toolbar=0,menubar=0,location=0,directories=0,status=0');
	ww.resizeTo(w,h);
}