var popwin;
function popupwindow(url,w,h,status,toolbar,scrollbars,resize)
{
	popwin=window.open(url, 'popup', 'height='+h+',width=' + w + ',status=' + status + ',toolbar=' + toolbar + ',scrollbars=' + scrollbars + ',resizable=' + resize + '');
	if (popwin != null) 
	{ 
		if (popwin.opener == null) 
		{ 
			popwin.opener = self; 
			window.name = 'popup'; 
			popwin.location.href=url; 
		} 
	}
	popwin.focus();
}