var nscp = (navigator.appName == "Netscape")

var ismc = (navigator.appVersion.indexOf("Mac") != -1)

var vers = parseFloat(navigator.appVersion.substring(22,25))





function getObj(obj)

{	if (nscp)

	{	compLayr = document.layers[obj]

	}

	else

	{	compLayr = eval("document.all." + obj + ".style")

	}

	return compLayr

}



function setTop(layr,num)

{	obj = getObj(layr)

	if (nscp)

	{	obj.top = num

	}

	else

	{	obj.posTop = num

	}

}



function show(layr)

{	obj = getObj(layr)

	obj.visibility = "visible"

}



function hide(layr)

{	obj = getObj(layr)

	obj.visibility = "hidden"

}



function layerHeight(layr)

{	if (nscp)

	{	return eval("document." + layr + ".document.height")

	}

	else

	{	return eval("document.all." + layr + ".scrollHeight")

	}

}



function layerWidth(layr)

{	if (nscp)

	{	return eval("document." + layr + ".document.width")

	}

	else

	{	return eval("document.all." + layr + ".scrollWidth")

	}

}







function getLeft(layr)

{	obj = getObj(layr)

	if (nscp)

	{	return (obj.left)

	}

	else

	{	x = eval(layr + ".offsetLeft")

		return (x)

	}

}





function imgOn(layerName,imgName)

{	if (nscp)

	{	

		eval("document." + layerName + ".document[imgName].src = " + imgName + "on.src");

	}

	else

	{	

		document[imgName].src = eval(imgName + "on.src");

	}

}



function imgOff(layerName,imgName)

{	if (nscp)

	{	

		eval("document." + layerName + ".document[imgName].src = " + imgName + "off.src");

	}

	else

	{	

		document[imgName].src = eval(imgName + "off.src");

	}

}