var is_mac = window.navigator.platform == "MacPPC";
var mac_ns = window.navigator.platform == "MacPPC" && navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) > "4";
var mac    = window.navigator.platform == "MacPPC" && navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) == "4";
var mac_ie = window.navigator.platform == "MacPPC" && navigator.userAgent.match(/MSIE/i);
var safari = window.navigator.platform == "MacPPC" && navigator.userAgent.match(/Safari/i);
var ie     = navigator.userAgent.match(/MSIE\s5.*/i);
var ie6    = navigator.userAgent.match(/MSIE\s6.*/i);
var ie4    = navigator.userAgent.match(/MSIE\s4.*/i);
var op     = navigator.userAgent.indexOf('Opera') != -1;
var ns4    = navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) == "4";	
var moz    = navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) > "4";
var ns6    = navigator.userAgent.match(/Netscape6/i);
var konq   = navigator.userAgent.match(/Konqueror/i);
var timer  = null;

if (mac_ie) {
	document.write("<link rel=\"stylesheet\" href=\"css/menus_ie6.css\" type=\"text/css\" \/>");
	// document.write("<link rel=\"stylesheet\" href=\"css/mac_ns4.css\" type=\"text/css\" \/>");
} else if (is_mac || mac_ns) {
	document.write("<LINK REL=stylesheet HREF=\"css/menus_moz.css\" TYPE=\"text/css\">");
} else if (ie4) {
	document.write("<LINK REL=stylesheet HREF=\"css/menus.css\" TYPE=\"text/css\">");
} else if (ie6 || ie) {
	document.write("<LINK REL=stylesheet HREF=\"css/menus_ie6.css\" TYPE=\"text/css\">");
} else if (moz || konq) {
	document.write("<LINK REL=stylesheet HREF=\"css/menus_moz.css\" TYPE=\"text/css\">");
} else if (op) {
	document.write("<LINK REL=stylesheet HREF=\"css/menus_op.css\" TYPE=\"text/css\">");
} else {
	document.write("<LINK REL=stylesheet HREF=\"css/menus.css\" TYPE=\"text/css\">");
	document.write("<LINK REL=stylesheet HREF=\"css/ns4.css\" TYPE=\"text/css\">");
	alert('Nicht getesteter Browser, richtige Darstellung ist nicht garantiert! Wir empfehlen den Mozilla Firefox zu installieren.');
}

// Ein Menue öffnen...
function OpenMenu(x) {
	if(ie || ie6 && !op){
		showmenu  = document.all.menu[x];
		showmenu.style.visibility  = "visible";
		for (i = 0; i < document.all.menu.length; i++) {
			currentmenu  = document.all.menu[i];
			if ( ((currentmenu.style.visibility == "visible")&&(currentmenu != showmenu)) ) {
				currentmenu.style.visibility = "hidden";
			}
		}
	}
	if(moz || op || konq) {
		showmenu = document.getElementsByName("menu")[x];
		showmenu.style.visibility = "visible";
		var menus = 5;
		for (i = 0; i < menus; i++) {
			currentmenu=document.getElementsByName("menu")[i];
			if ((currentmenu.style.visibility = "visible")&&(currentmenu != showmenu)) { 
				currentmenu.style.visibility = "hidden";
			}
		}
	}
	if(ie4){
		showmenu = document.all.menu[x];
		showmenu.style.visibility = "visible";
		var menus = 5;
		for (i = 0; i < document.all.menu.length; i++) {
			currentmenu=document.all.menu[i];
			if ( ((currentmenu.style.visibility == "visible")&&(currentmenu != showmenu)) ) {
				 currentmenu.style.visibility = "hidden";
			}
		}
	}
}


// Alle Menues schliessen...
function CloseAll() {
	var menus = 5;
	for (i = 0; i < menus; i++) {
		if(ie4 || ie || ie6)  { document.all.menu[i].style.visibility = "hidden"; }
		if(ns4)               { document.layers[i].visibility = "hide"; }
		if(moz || konq || op) { document.getElementsByName("menu")[i].style.visibility = "hidden"; }
	}
}