function kontrola(){
var jmeno = document.getElementById('jmeno');
var primeni = document.getElementById('primeni');
var telefon = document.getElementById('telefon');
var upravit = document.getElementById('upravit');
if(jmeno.value!='' && primeni.value!='' && telefon.value!=''){
upravit.disabled=false;
}else{
upravit.disabled=true;
}
}
function kontrola_heslo(){
var stare_kod = document.getElementById('heslo_stare_kod');
var stare = document.getElementById('heslo_stare');
var nove = document.getElementById('heslo_nove');
var nove2 = document.getElementById('heslo_nove_2');
var info = document.getElementById('info');    
var info_stare = document.getElementById('info_stare');
var zmen = document.getElementById('zmen');
if(calcSHA1(calcMD5(stare.value))!=stare_kod.value){
zmen.disabled=true;
info_stare.innerHTML = '<img src="../img/chyba.gif" alt="chyba.gif, 331B" class="" title="Chyba" height="12" width="12" />';
stare.style.border = "1px solid red";
}else{
info_stare.innerHTML = '<img src="../img/ok.gif" alt="ok.gif, 904B" class="" title="Ok" height="12" width="12" />';
stare.style.border = "1px solid green";
}
if(nove.value!=nove2.value || (nove.value=='' && nove2.value=='')){
zmen.disabled=true;
info.innerHTML = '<img src="../img/chyba.gif" alt="chyba.gif, 331B" class="" title="Chyba" height="12" width="12" />';
nove.style.border = "1px solid red";
nove2.style.border = "1px solid red";
}else{
info.innerHTML = '<img src="../img/ok.gif" alt="ok.gif, 904B" class="" title="Ok" height="12" width="12" />';
nove.style.border = "1px solid green";
nove2.style.border = "1px solid green";
}
if(nove.value==nove2.value && calcSHA1(calcMD5(stare.value))==stare_kod.value){
zmen.disabled=false;
}
}