/*
                 img1 = new Image();
                 img2 = new Image();
                 img3 = new Image();
                 img4 = new Image();
                 pom = new Image();
                 img1.src = "./soubory/07over.gif";
                 img2.src = "./soubory/08over.gif";
                 img3.src = "./soubory/09over.gif";
                 img4.src = "./soubory/10over.gif";

                 function swapImage(name)
                 {
                   pom.src = document.images[name].src;
                   document.images[name].src = eval(name).src;
                   eval(name).src = pom.src;
                 }



function show(what)
{
	what.style.visibility='visible';
}



function hide(what)
{
       what.style.visibility='hidden';
}

   */


function show_hide(what)
{
    switch(what)
    {
        case(1):(document.getElementById("m1o").style.visibility=='visible'?document.getElementById("m1o").style.visibility='hidden':document.getElementById("m1o").style.visibility='visible'); break;
        case(2):(document.getElementById("m2o").style.visibility=='visible'?document.getElementById("m2o").style.visibility='hidden':document.getElementById("m2o").style.visibility='visible'); break;
        case(3):(document.getElementById("m3o").style.visibility=='visible'?document.getElementById("m3o").style.visibility='hidden':document.getElementById("m3o").style.visibility='visible'); break;
        case(4):(document.getElementById("m4o").style.visibility=='visible'?document.getElementById("m4o").style.visibility='hidden':document.getElementById("m4o").style.visibility='visible'); break;
    }
}