var win = null;
function NewWindow(wizpage, wizname, w, h, scroll){
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
settings = 'height=' + h + ',width=' + w + ',top= 100,' + TopPosition + ',left=' + LeftPosition + ',scrollbars=' + scroll + ',resizable'
win = window.open(wizpage, wizname, settings)
}