function OpenWindow(mypage,travel,w, h,scroll,resize) {
var winl = (screen.width - w);
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable='+resize+''
win = window.open(mypage, travel, winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}