var win= null;
function openNew(mypage,myname,h,w){
var winl = (screen.width-w)/2;
var wint = (screen.height-h)/2;
var settings  ='height='+h+',';
settings +='width='+w+',';
settings +='top='+wint+',';
settings +='left='+winl+',';
settings +='scrollbars=yes,';
settings +='history=no,';
settings +='toolbar=yes,';
settings +='resizable=no';
settings +='location=no,';
settings +='directories=no,';
settings +='status=yes,';
settings +='menubar=yes,';
settings +='copyhistory=no,';
win=window.open(mypage,myname,settings);
}