<!--
	ns4 = (document.layers)? true:false;
	ie4 = (document.all)? true:false;

	browserName = navigator.appName;
	browserVer = parseInt(navigator.appVersion);

	if (browserName == "Netscape" && browserVer >=3) {
 		version = "n3";
	} else if (browserName == "Microsoft Internet Explorer" && browserVer >=4) {
 		version = "n3";
	} else version = "n2";

//pre-load images
	if (version == "n3")
		{
			//number of total rollover images
        	for (i=1; i<=8; i++)
        		{
                eval ("nav"+i+"a=new Image ()");
                eval ("nav"+i+"a.src='../images/nav"+i+"a.gif'");
                eval ("nav"+i+"i=new Image ()");
                eval ("nav"+i+"i.src='../images/nav"+i+"i.gif'");
        		}
		}

	function high(imgnum)
		{
        if (version == "n3")
		eval("document.nav"+imgnum+".src=nav"+imgnum+"a.src");
		}

	function unhigh(imgnum)
		{
        if (version == "n3")
		eval("document.nav"+imgnum+".src=nav"+imgnum+"i.src");
		}

// -->