function CheckAnketa(form)
{
    var ret = true;
    var ext_info = document.getElementById("ext_info_id");
    
    for(i=0; i<form.elements.length; i++)
    {
        
        if(form.elements[i].type=="hidden" && form.elements[i].id && form.elements[i].name != "ext_info")
        {
            //alert(form.elements[i].id);
            //document.FormName.elements[i].checked=true;
            var mnozina = document.getElementsByName(form.elements[i].id); 
            var found = false
            for(y=0; y<mnozina.length; y++)
            {
                if ((mnozina[y].type == "checkbox" || mnozina[y].type == "radio") && mnozina[y].checked) found = true;
                else if (mnozina[y].type == "textarea" && mnozina[y].value != "") found = true;
            }
            if (!found)
            {
              alert("Neodpověděli jste na otázku: " + form.elements[i].value);
              ret = false;
            }
        }
        
        if (ext_info && ext_info.value == 1)
        {

              if ( form.elements[i].name == "jmeno" ) {
                    if (form.elements[i].value == "") {
                        alert ("Nezadali jste jméno");
                        ret = false;
                    }
              }
              if ( form.elements[i].name == "prijmeni" ) { 
                    if (form.elements[i].value == "") { 
                        alert ("Nezadali jste příjmení");
                        ret = false;
                    }
              }
              if ( form.elements[i].name == "ulice" ) { 
                    if (form.elements[i].value == "")  { 
                        alert ("Nezadali jste ulici");                    
                        ret = false;
                    }
              }
              if ( form.elements[i].name == "mesto" ) { 
                    if (form.elements[i].value == "") { 
                        alert ("Nezadali jste město");
                        ret = false;
                    }
              }
              if ( form.elements[i].name == "psc" ) { 
                    if (form.elements[i].value == "") { 
                        alert ("Nezadali jste PSČ");
                        ret = false;
                    }
                    
             }
            
        }
        
    }
    
    return ret;
}

function PopupPic(sPicURL) 
{
    window.open("popup.htm?"+sPicURL, "", "resizable=1,HEIGHT=200,WIDTH=200");
}