function ukazka(url)
{
window.open(url,"ukazka","toolbar=0,location=0,scrollbars=1,width=100,height=100,resizable=1,left=0,top=0");
}

function www(url)
{
window.open(url,"www","toolbar=0,location=0,scrollbars=1,width=780,height=580,resizable=1,left=0,top=0");
}

function kontr(form)
        {
        var cstr=form.srchtxt.value
   	if (cstr=="")
       	  {
          if (form.lang.value=="sk")
            {alert("Nebol zadaný reťazec pre vyhľadanie!");}
          else
            {alert("You must enter a string to find!");}
          form.srchtxt.focus();
          return false;
       	  }
   	if (cstr.length < 3 )
       	  {
           if (form.lang.value=="sk")
             {alert("Zadajte aspoň 3 znaky pre vyhľadanie!");}
           else
             {alert("Enter minimal 3 characters to search!");}
          form.srchtxt.focus();
          return false;
       	  }
	}