// A "Screen Overlay" (in Google Earth) featuring CSIRO logo for Google Maps

function ScreenOverlay() {
}
ScreenOverlay.prototype = new GControl();

// Creates a one DIV for each of the buttons and places them in a container
// DIV which is returned as our control element. We add the control to
// to the map container and return the element for the map class to
// position properly.
ScreenOverlay.prototype.initialize = function(map) {
 // var container = document.createElement("div");



  var zoomOutDiv = document.createElement("div");
  this.setButtonStyle_(zoomOutDiv);
 // container.appendChild(zoomOutDiv);
  var logoimage=document.createElement('img');
	if((navigator.appName == "Microsoft Internet Explorer"))
	  logoimage.src='http://www.sensornets.csiro.au/gmap/overlay/screen/logo_ie.gif';
  else logoimage.src='http://www.sensornets.csiro.au/gmap/overlay/screen/logo.png';
//  zoomOutDiv.appendChild(logoimage);


  map.getContainer().appendChild(zoomOutDiv);
  return zoomOutDiv;
}

// By default, the control will appear in the top left corner of the
// map with 7 pixels of padding.
ScreenOverlay.prototype.getDefaultPosition = function() {
  return new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(7, 7));
}

// Sets the proper CSS for the given button element.
ScreenOverlay.prototype.setButtonStyle_ = function(button) {
  //button.style.textDecoration = "underline";
  button.style.opacity = "0.92";
  //button.style.backgroundColor = "white";
  //button.style.font = "small Arial";
  //button.style.border = "0px solid black";
  //button.style.padding = "2px";
  //button.style.marginLeft = "400px";
  button.style.textAlign = "right";
	button.style.zIndex     = 11;
  //button.style.width = "6em";
  //button.style.cursor = "pointer";
}