var map = null;
var geocoder = null;

// Pane swapping done differently for the DR site, since the tabs are
// sliced images, and limited to only two tabs.
function swapPanes(tabInFront) {
    removeSmallOverlays();
    removeDisclaimer();
    var imgfile;
    if (tabInFront == 'left') {
      imgfile = "../images/SlicedGraphics/tabNav_leftUp.gif";
      indoor = false
    } else {
      imgfile = "../images/SlicedGraphics/tabNav_rightUp.gif";
      indoor = true;
    }

    var div = document.getElementById('container');
    div.innerHTML = '';
    div.style.display = 'none';

    map.removeOverlay(currTileLayer);
    if (indoor) {
	currTileLayer = tilelayerIndoorOverlay;
    }
    else {
	currTileLayer = tilelayerOutdoorOverlay;
    }
    map.addOverlay(currTileLayer);
    
    var mapbounds = map.getBounds();
    
    geocoder.setViewport(mapbounds);

    document.getElementById('tabimg').src = imgfile;
}