function openWindow(url,w,h) {
var winName = 'fixedWindow';
var Width = 'width=' + w;
var Height = ',height=' + h;
var Left = ',left=' + ((screen.width - w) / 2);
var Top = ',top=' + ((screen.height- h) / 2);
var Option = ',status=0,menubar=0,scrollbars=1,resizable=1';
var features = Width + Height + Left + Top + Option;
winName = window.open(url,winName,features);
if (window.focus) {
winName.focus();
}
}