function nw(url,h,w,t,s)
{
	fl=(screen.width-w)/2;
	ft=(screen.height-h)/2;
	
	mywindow = window.open(url,"Window","toolbar="+t+",location=no,directories=no,status=no,menubar=no,resizable=yes,width="+w+",height="+h+",left="+fl+",top="+ft+",scrollbars="+s);
}