function height_window(){
if(window.innerHeight)
return window.innerHeight;
if(document.documentElement.clientHeight)
return document.documentElement.clientHeight;
return (null);
}

var isIE=0;
var isOtherBrowser=0;
function pokus() {
if(navigator.appName.indexOf('Microsoft Internet Explorer')!=-1)
{isIE=1;
var height_div=document.getElementById("home").scrollHeight;
height=height_window();

document.getElementById('home').style.marginTop=(height-height_div)/2+'px';

}
else
{isOtherBrowser =1;

var height_div=document.getElementById("home").scrollHeight;
height=height_window();

document.getElementById('home').style.marginTop=(height-height_div-70)+'px';




zmena_okna = setTimeout("pokus()", 1);

}
}