function PopUp(url,w,h)
{
    var ScreenWidth=window.screen.width;
    var ScreenHeight=window.screen.height;
    var movefromedge=0;
    placementx=(ScreenWidth/2)-((w)/2);
    placementy=(ScreenHeight/2)-((h)/2);
    WinPop=window.open(url,"","width="+w+",height="+h+",toolbar=0,location=0,directories=0,status=0,scrollbars=1,menubar=0,resizable=0,left="+placementx+",top="+placementy+",screenX="+placementx+",screenY="+placementy);
}