<!--
function ShowLayerChangeBut(LayerName,ButtonName, ButtonSrc, number1)
//shows an invisible layer and changes the relevant button.
{
	var i;
	if (ButtonName != "none")
	{
		MM_swapImage(ButtonName,'',ButtonSrc,number1);
	}
	if (LayerName != "none") 
	{
		//setBrowser();
//		if (is_NS4)
//		{
//			i=1;
//		}
//		else
//		{
			MM_showHideLayers(LayerName,'','show');
//		}
	}
}

function HideLayerChangeBut(LayerName, ButtonName)
//makes a layer invisible and changes the relevant button back
{
	if (ButtonName != "none")
	{
		MM_swapImgRestore();
	}
	if (LayerName != "none") 
	{
//		if (is_NS4)
//		{
//			i=1;
//		}
//		else
//		{
			MM_showHideLayers(LayerName,'','hide');
//		}
	}
}

function ShowLayer2(LayerName)
//shows an invisible layer and changes the relevant button.
{
	if (LayerName != "none") 
	{
		MM_showHideLayers(LayerName,'','show');
		HideAllOtherLayers(LayerName);
	}
}

function HideAllOtherLayers(LayerName)
//makes a layer invisible and changes the relevant button back
{
	var pic1 = "PicLayer1";
	if (LayerName != "none") 
	{
		if (LayerName!="PicLayer1")
		{
			MM_showHideLayers("PicLayer1",'','hide');
		}
		if (LayerName != "PicLayer2")
		{
			MM_showHideLayers("PicLayer2",'','hide');
		}
		if (LayerName != "PicLayer3")
		{
			MM_showHideLayers("PicLayer3",'','hide');
		}
		if (LayerName != "PicLayer4")
		{
			MM_showHideLayers("PicLayer4",'','hide');
		}
		if (LayerName != "PicLayer5")
		{
			MM_showHideLayers("PicLayer5",'','hide');
		}
		if (LayerName != "PicLayer6")
		{
			MM_showHideLayers("PicLayer6",'','hide');
		}
		if (LayerName != "PicLayer7")
		{
			MM_showHideLayers("PicLayer7",'','hide');
		}
		if (LayerName != "PicLayer8")
		{
			MM_showHideLayers("PicLayer8",'','hide');
		}
		if (LayerName != "PicLayer9")
		{
			MM_showHideLayers("PicLayer9",'','hide');
		}
		if (LayerName != "PicLayer10")
		{
			MM_showHideLayers("PicLayer10",'','hide');
		}
		if (LayerName != "PicLayer11")
		{
			MM_showHideLayers("PicLayer11",'','hide');
		}
		if (LayerName != "PicLayer12")
		{
			MM_showHideLayers("PicLayer12",'','hide');
		}
	}
}
//-->