// window open
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

var subwin = window;
function openwin(url){
		url = './'+url+'\.html';
	if ((subwin == window) || subwin.closed) {
		subwin = window.open(url,"product","width=521,height=560,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=yes,resizable=0");
	}else{
		subwin.location.href = url;
	}
	subwin.focus();
	return(false);
}