function img_border(pozadi) {
pozadi.style.border="1px solid rgb(38,109,73)";
}
function img_border_prev(pozadi) {
pozadi.style.border="1px solid rgb(118,53,31)";
}

function img_border_detail(pozadi) {
pozadi.style.border="3px solid rgb(38,109,73)";
}
function img_border_detail_prev(pozadi) {
pozadi.style.border="3px solid rgb(118,53,31)";
}


function zkontroluj_hledani(formular) {
if (window.RegExp)
{
re = new RegExp("[^\"\']{3,}");
if (!re.test(formular.hledat.value))
{
alert("Klíčové slovo musí obsahovat minimánlě 3 znaky!");
formular.hledat.focus();
return false;
}
}
}


function changevisibility(ident) {
if  (document.getElementById(ident).style.display == ('block')) {
document.getElementById(ident).style.display = ('none');
}
else {
document.getElementById(ident).style.display = ('block');
}
}