highLightNum="0";
var isNotMacN3 = true;
region = 420;

if ((navigator.userAgent.indexOf('Macintosh') != "-1") && (navigator.appVersion.charAt(0) == "3") && (navigator.appName.indexOf('Netscape') != "-1"))
	{isNotMacN3 = false};

if((document.images) && (isNotMacN3))
	{
	imag = new Array();
	imag[0] = "/imgs/region"+region+"/img_hdr_home_on.gif";
	imag[1] = "/imgs/region"+region+"/img_hdr_home.gif";
	imag[2] = "/imgs/region"+region+"/img_hdr_museums_on.gif";
	imag[3] = "/imgs/region"+region+"/img_hdr_museums.gif";
	imag[4] = "/imgs/region"+region+"/img_hdr_help_on.gif";
	imag[5] = "/imgs/region"+region+"/img_hdr_help.gif";
	imag[6] = "/imgs/region"+region+"/img_hdr_index_on.gif";
	imag[7] = "/imgs/region"+region+"/img_hdr_index.gif";
	imag[8] = "/imgs/region"+region+"/img_hdr_go_on.gif";
	imag[9] = "/imgs/region"+region+"/img_hdr_go.gif";
	imag[10] = "/imgs/img_ind_africa_on.gif";
	imag[11] = "/imgs/img_ind_africa.gif";
	imag[12] = "/imgs/img_ind_americas_on.gif";
	imag[13] = "/imgs/img_ind_americas.gif";
	imag[14] = "/imgs/img_ind_asia_on.gif";
	imag[15] = "/imgs/img_ind_asia.gif";
	imag[16] = "/imgs/img_ind_brit_on.gif";
	imag[17] = "/imgs/img_ind_brit.gif";
	imag[18] = "/imgs/img_ind_europe_on.gif";
	imag[19] = "/imgs/img_ind_europe.gif";
	imag[20] = "/imgs/img_ind_oceania_on.gif";
	imag[21] = "/imgs/img_ind_oceania.gif";
	};

if((document.images) && (isNotMacN3))
	{im = new Array();
	for (var i = 0; i < imag.length; i++)
		{
	       	im[i] = new Image();
	       	im[i].src = imag[i]
		};
	};
	function swtch(num,imgname)
	{ if((document.images) && (isNotMacN3))
	    {
    		imgname.src = im[num].src;

	    };
	};