var zoomCtrlId = "travZoomCtrl";
var control;

// 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.
if (control == null) {
  control = document.createElement("div");

  var oTable = document.createElement("table");
  oTable.setAttribute('border', '0');
  oTable.setAttribute('cellspacing', '0');
  oTable.setAttribute('cellpadding', '0');
  var oTBody = document.createElement("tbody");
  
	var oTR0 = document.createElement("tr");
  var oTD0 = document.createElement("td"); 
  oTR0.appendChild(oTD0);
  
  
	var oTR1 = document.createElement("tr");
  var oTD1 = document.createElement("td");
  var zoomInDiv = document.createElement("div");
  //this.setButtonStyle_(zoomInDiv);  
  var zoomInHref = document.createElement("a");
  zoomInHref.setAttribute("href", "javascript:bZoomIn();");
	var zoomInImg = document.createElement('img');
	zoomInImg.src="img/zoom_in.gif";
	zoomInImg.setAttribute('border', '0');
	zoomInHref.appendChild(zoomInImg);
	zoomInDiv.appendChild(zoomInHref); 
  //GEvent.addDomListener(zoomInDiv, "click", function() {
  //  map.zoomIn();
  //});
  oTD1.appendChild(zoomInDiv);
  oTR1.appendChild(oTD1);
 
 	var oTR2 = document.createElement("tr");
	var oTD2 = document.createElement("td");
  var zoomOutDiv = document.createElement("div");
  //this.setButtonStyle_(zoomOutDiv);
  var zoomOutHref = document.createElement("a");
  zoomOutHref.setAttribute("href", "javascript:bZoomOut();");
 	var zoomOutImg = document.createElement('img');
	zoomOutImg.src="img/zoom_out.gif";
	zoomOutImg.setAttribute('border', '0');
	zoomOutHref.appendChild(zoomOutImg);
	zoomOutDiv.appendChild(zoomOutHref); 
  //GEvent.addDomListener(zoomOutDiv, "click", function() {
  //  map.zoomOut();
  //});
	oTD2.appendChild(zoomOutDiv);
	oTR2.appendChild(oTD2);

	oTBody.appendChild(oTR0);
  oTBody.appendChild(oTR1);
  oTBody.appendChild(oTR2);
  oTable.appendChild(oTBody);
  
  control.id = zoomCtrlId;
  control.style.position = 'absolute';
	control.style.left = "0px";
	control.style.top = "20px";
	control.appendChild(oTable);
}