The Zoom control is a pair of +/- links for zooming in and out.
| OpenLayers. | The Zoom control is a pair of +/- links for zooming in and out. | 
| Properties | |
| zoomInText | {String} Text for zoom-in link. | 
| zoomInId | {String} Instead of having the control create a zoom in link, you can provide the identifier for an anchor element already added to the document. | 
| zoomOutText | {String} Text for zoom-out link. | 
| zoomOutId | {String} Instead of having the control create a zoom out link, you can provide the identifier for an anchor element already added to the document. |