function openPopup(url,w,h){
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	popupWin=window.open(url,'popup','status=no,menubar=no,width='+w+',height='+h+',top='+wint+',left='+winl)
}

function popup(mylink, windowname){
	if (! window.focus) 
		return true;
		var href;
	if (typeof(mylink) == 'string')
		href=mylink;
	else   href=mylink.href;window.open(href, windowname, '');
		return false;
}


function my_win(myURL) 
{ 
	window.open(myURL,'mywindow','width=860,height=630,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no');
}