browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion); 

if (browser_name == "Netscape" && browser_version >= 3.0) { roll = 'true'; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 4.0) { roll = 'true'; }
else { roll = 'false'; }

			over_a1=new Image(98,55);over_a1.src="img/navi/1_off.gif";
			over_a2=new Image(98,55);over_a2.src="img/navi/2_off.gif";
			over_a3=new Image(98,55);over_a3.src="img/navi/3_off.gif";
			over_a4=new Image(98,55);over_a4.src="img/navi/4_off.gif";
			over_a5=new Image(98,55);over_a5.src="img/navi/5_off.gif";		
			
			over_a6=new Image(98,55);over_a6.src="img/produktauswahl/internet_off.gif";	
			over_a7=new Image(98,55);over_a7.src="img/produktauswahl/intranet_off.gif";	
			over_a8=new Image(98,55);over_a8.src="img/produktauswahl/ebusiness_off.gif";	
			over_a9=new Image(98,55);over_a9.src="img/produktauswahl/sharepoint_off.gif";
			over_a10=new Image(98,55);over_a10.src="img/produktauswahl/dummy_off.gif";	
			over_a11=new Image(98,55);over_a11.src="img/produktauswahl/print_off.gif";	
			over_a12=new Image(98,55);over_a12.src="img/produktauswahl/flash_off.gif";	
			over_a13=new Image(98,55);over_a13.src="img/produktauswahl/dummy_off.gif";	
			
			
			over_a1_on=new Image(98,55);over_a1_on.src="img/navi/1_on.gif";
			over_a2_on=new Image(98,55);over_a2_on.src="img/navi/2_on.gif";
			over_a3_on=new Image(98,55);over_a3_on.src="img/navi/3_on.gif";
			over_a4_on=new Image(98,55);over_a4_on.src="img/navi/4_on.gif";
			over_a5_on=new Image(98,55);over_a5_on.src="img/navi/5_on.gif";
			
			over_a6_on=new Image(98,55);over_a6_on.src="img/produktauswahl/internet_on.gif";
			over_a7_on=new Image(98,55);over_a7_on.src="img/produktauswahl/intranet_on.gif";
			over_a8_on=new Image(98,55);over_a8_on.src="img/produktauswahl/ebusiness_on.gif";
			over_a9_on=new Image(98,55);over_a9_on.src="img/produktauswahl/sharepoint_on.gif";
			over_a10_on=new Image(98,55);over_a10_on.src="img/produktauswahl/dummy_on.gif";
			over_a11_on=new Image(98,55);over_a11_on.src="img/produktauswahl/print_on.gif";
			over_a12_on=new Image(98,55);over_a12_on.src="img/produktauswahl/flash_on.gif";
			over_a13_on=new Image(98,55);over_a13_on.src="img/produktauswahl/dummy_on.gif";


function msover(img,ref) { if (roll == 'true') { document.images[img].src = ref; } }
function msout(img,ref)  { if (roll == 'true') { document.images[img].src = ref; } }

function HideShow(id, state) {
	if (navigator.appName == "Netscape") {
		if (navigator.appVersion.substr(0, 1) == "4") {
			eval("document."+id+".visibility = \""+state+"\";");
		}
		else {
			eval("document.getElementById('"+id+"').style.visibility= '"+state+"';");
		}
	}
	else
		eval("document.all."+id+".style.visibility = \""+state+"\";");

}

function ChangeStyle(id, style, state) {
	if (navigator.appName == "Netscape") {
		if (navigator.appVersion.substr(0, 1) == "4") {
			var str = "document."+id+"."+style+" = \""+state+"\";";
			eval(str);
		}
		else {
			eval("document.getElementById('"+id+"').style."+style+"= '"+state+"';");
		}
	}
	else
		eval("document.all."+id+".style."+style+" = \""+state+"\";");
		
}

function CloseWindows() {
	HideShow("eins", "hidden");
	HideShow("zwei", "hidden");
	HideShow("drei", "hidden");
	HideShow("vier", "hidden");
	HideShow("fuenf", "hidden");
    HideShow("sechs", "hidden");
    HideShow("sieben", "hidden");
}

function Hide(kontinent) {
	if (kontinent == 0) {
		CloseWindows();
	}
}

function ShowMenu(kontinent) {
	CloseWindows();

	switch(kontinent) {
	case 1:
		HideShow("eins", "visible");
		break;
		
	case 2:
		HideShow("zwei", "visible");
		break;
		
	case 3:
		HideShow("drei", "visible");
		break;
		
	case 4:
		HideShow("vier", "visible");
		break;
		
	case 5:
		HideShow("fuenf", "visible");
		break;
    
    case 6:
		HideShow("sechs", "visible");
		break;
	
	case 7:
		HideShow("sieben", "visible");
		break;

	}
}