function writeLayerText(text){
	if (document.layers){
		var layer = getLayer();
		if (layer){
			layer.document.open("text/html");
			layer.document.write(text);
			layer.document.close();
		}
	}
	else if (document.all){
		var layer = getLayer();
		if (layer){
			layer.innerHTML = text;
		}
	}
}

function showLayer(){
	status = "";
	if(document.layers){
		var layer = getLayer();
		if (layer){
			layer.visibility = "show";
		}
	}
	else if(document.all){
		var layer = getLayer();
		if (layer){
			layer.style.visibility = "visible";
		}
	}
}

function hideLayer(){
	status = "";
	if(document.layers){
		var layer = getLayer();
		if (layer){
			layer.visibility = "hide";
		}
	}
	else if(document.all){
		var layer = getLayer();
		if (layer){
			layer.style.visibility = "hidden";
		}
	}
}

function getLayer(){
	if (document.layers){
		var layer = eval("document." + layerName);
		return layer;
	}
	else if (document.all){
		var layer = document.all[layerName];
		return layer;
	}
}

function getLayerStyle(){
	if (document.layers){
		return getLayer(layerName);
	}
	else if (document.all){
		var layer = getLayer(layerName);
		if (!layer){
			return;
		}
		return layer.style;
	}
}

function getLeft(img){ 
  if (img.offsetParent){
    return (img.offsetLeft + getLeft(img.offsetParent)); 
	}
  else {
    return (img.offsetLeft); 
	}
} 


function getTop(img){
  if (img.offsetParent){
		return (img.offsetTop + getTop(img.offsetParent));
	}
  else{
		return (img.offsetTop);
  }
}