function openWindow (htmlSrc) {
  var width = 420;
  var height = 450;
  var winLeft =(screen.width - width) / 2;
  var winUp = (screen.height - height) / 2;
  var centre = ',screenX='+winLeft+',screenY='+winUp+',left='+winLeft+',top='+winUp;
    win=window.open(htmlSrc, "WaterX1", 'scrollbars=yes,width='+width+',height='+height+centre);
    win.focus ();
}

function openWindow2 (htmlSrc) {
  var width = 480;
  var height = 200;
  var winLeft =(screen.width - width) / 2;
  var winUp = (screen.height - height) / 2;
  var centre = ',screenX='+winLeft+',screenY='+winUp+',left='+winLeft+',top='+winUp;
    win=window.open(htmlSrc, "WaterX2", 'scrollbars=no,width='+width+',height='+height+centre);
    win.focus ();
}

function button (object, newState) {
	object.className = ('button' + newState);
}