var arrLayers = new Array("lyrDescription", "lyrDetails","lyrAccessories", "lyrComments");

function swapLayers(id) {	
	for (var intI=0; intI<arrLayers.length; intI++) {
	  
	  if (arrLayers[intI]==id) { 
		  document.getElementById(id).style.display='block';
		}	else { 
		  document.getElementById(arrLayers[intI]).style.display='none';	
		}
	}
	return true;
}

function changePic(objThis) {
  var thisCtrl;

  document.tabOverview.src='images/tabOverview-off.gif'
  document.tabFeatures.src='images/tabFeatures-off.gif'
  document.tabDrivepdf.src='images/tabDrivepdf-off.gif'
	document.tabAccessories.src='images/tabAccessories-off.gif'
	thisCtrl=eval("document." + objThis);
	thisCtrl.src='images/' + objThis + '.gif';
	return true;
}

function swapImage(num) {
	if (document.images) {
		document.swap.src = image_list[num].src;
	}
	
	if (image_list.length>1) {
  	for (var intI=0; intI<image_list.length; intI++) {
    	document.getElementById('thumb'+intI).src='images/thumb' + (intI+1) + '-off.gif';
  	}
	  document.getElementById('thumb'+num).src='images/thumb' + (num+1) + '-on.gif';
	}
	return true;
}