function CheckForm(formular)
{

if (formular.jmeno.value=="")
{
alert("Chybí jméno!");
formular.jmeno.focus();
return false;
}
if (formular.zprava.value=="")
{
alert("Chybí text zprávy");
formular.zprava.focus();
return false;
}

else if (formular.nula.value=="")



{
alert("Vyplňte pole antispam textem z obrázku");
formular.nula.focus();
return false;
}
else
return true;

}


function openJSLWindow(adr) {
iMyWidth = (window.screen.width/20)
iMyHeight = (window.screen.height/20)
Fokus = window.open(adr, "JSL","height=320,width=420,resizable=no,left=" + iMyWidth + ",top=" + iMyHeight + ",screenX=" + iMyWidth + ",screenY=" + iMyHeight + ",scrollbars=yes");
Fokus.focus()
}