function napis(odkud,stav,co){
kam = document.getElementById('np'); //bublina (stačí jedna pro všechny) 
odkud.title = "";
var strCont = null;
var str = null;
if (document.all && !window.opera) { //=IE IE počítá offsetTop a offsetLeft bez marginu
strCont = document.getElementById('stredniContainer').offsetLeft;
str = document.getElementById('stredni').offsetTop;
}
if (stav == "jo") {                 
kam.style.display = "block"; 

kam.innerHTML = co;
kam.style.top = str+odkud.offsetTop+25+"px";
kam.style.left = strCont+odkud.offsetLeft+10+"px";
} else {
kam.style.display = "none"; 
kam.innerHTML = "";
}
}

function preloadImages() {
var x;
var d=document; if(d.images){ if(!d.p) d.p=new Array();
var i, j=d.p.length, ab=preloadImages.arguments;
for(i=0; i<ab.length; i++)
if (ab[i].indexOf("#")!=0){ d.p[j]=new Image;
d.p[j++].src=ab[i];
}}
}