//***************************************************************************
// BROWSER CHECK
var g_strBrowType;
var g_blnIsMac;
var g_strColl = "";
var g_strStyleObj = "";
var visOn = "";
var visOff = "";

var g_blnIsMac = (navigator.platform.indexOf("Mac")!=-1);

//if not 4.0 or above browser, send alert, else set browser type to Netscape or IE
if (parseInt(navigator.appVersion) < 4)
	var oldBrowser = true
else {	
	isNS4 = (document.layers) ? true : false;
	isIE4 = (document.all && !document.getElementById) ? true : false;
	isIE5 = (document.all && document.getElementById) ? true : false;
	isNS6 = (!document.all && document.getElementById) ? true : false;

	if (isNS4) {
		g_strBrowType = "net";
		visOn = "show";
		visOff = "hide";
	//} else if ((navigator.appName.indexOf("Explorer") != -1) || (g_blnIsMac && (navigator.appName.indexOf("Netscape") != -1) && (parseInt(navigator.appVersion) == 6))) {
	} else if (isIE4 || isIE5) {
		g_strBrowType = "ie";
		g_strColl = "all.";
		g_strStyleObj = ".style";
		visOn = "visible";
		visOff = "hidden";
	} else if (isNS6) {
		g_strBrowType = "ns6";
		g_strStyleObj = ".style";
		visOn = "visible";
		visOff = "hidden";
	}
}
//***************************************************************************


//***************************************************************************
// Preload rollover images

	rollOver1 = new Image()
	rollOver1.src = "/images/nav/btn_unser_betrieb_ON.gif"
	
	rollOver2 = new Image()
	rollOver2.src = "/images/nav/btn_standort_ON.gif"
	
	rollOver3 = new Image()
	rollOver3.src = "/images/nav/btn_leistungen_ON.gif"
	
	rollOver4 = new Image()
	rollOver4.src = "/images/nav/btn_referenz_ON.gif"
	
	rollOver5 = new Image()
	rollOver5.src = "/images/nav/btn_anfrage_ON.gif"
	
	rollOver6 = new Image()
	rollOver6.src = "/images/nav/btn_kontakt_ON.gif"
	
	rollOver7 = new Image()
	rollOver7.src = "/images/nav/btn_impressum_ON.gif"
	
	
//***************************************************************************