var movieName = "karte";

function thisMovie(movieName) {
if (navigator.appName.indexOf ("Microsoft") !=-1) {
return window[movieName]
} else {
return document[movieName]
}
}

function swfOn(){
var swf = document.getElementById("swf");
var logo = document.getElementById("logo");
swf.style.zIndex = "10";
var movieActive = "true";
thisMovie(movieName).SetVariable("movieActive", movieActive);
}

function swfOff(){
var swf = document.getElementById("swf");
var logo = document.getElementById("logo");
swf.style.zIndex = "0";
var movieActive = "false";
thisMovie(movieName).SetVariable("movieActive", movieActive);
}