function objGet(x)
{
 if (typeof x != 'string') return x;
 else if (Boolean(document.getElementById)) return document.getElementById(x);
 else if (Boolean(document.all)) return eval('document.all.'+x);
 else return null;
}

//   (Sada objektu k vycisteni, maximalni pocet, -, hodnota)
function oznacBarvu(sada,obj1,numobj,tthis,vvalue)
{
 //objGet("art_no"+obj1).value = vvalue;

 var i;
 for(i=1;i!=numobj;i++)
 {
 obja=sada+i;

 var o = objGet(obja);
 o.className = 'image3';
 }
 objb=sada;
 
 var b = objGet(objb);
 b.value = vvalue;
 
 tthis.className='image3-aktual';
}

function PrepocitejPol(theform)
  {
   theform.submit();
  }
  
  var tlacitko = 1;
function Disab (but) {
  but.value = '> Cekejte prosim <';
  tlacitko=but;
}

function Soukromy () {
  //style.display = 'none';
  document.adresa.IC.disabled="true";
  document.adresa.DIC.disabled="true";
  document.adresa.Firma.disabled="true";
}

function Firemni () {
  document.adresa.IC.disabled=false;
  document.adresa.DIC.disabled=false;
  document.adresa.Firma.disabled=false;
}
function ControlNumber(e){
 var keynum,keychar,numcheck

 if(window.event){keynum = e.keyCode}
 else if(e.which){keynum = e.which}
 return ((keynum >= 48) && (keynum <= 57)) || keynum == 8 || keynum == 13
} 
<!-- Nahledy u odkazu
function ShowPicture(id,Source) {
if (Source=="1"){
if (document.layers) document.layers[''+id+''].visibility = "show"
else if (document.all) document.all[''+id+''].style.visibility = "visible"
else if (document.getElementById) document.getElementById(''+id+'').style.visibility = "visible"
}
else
if (Source=="0"){
if (document.layers) document.layers[''+id+''].visibility = "hide"
else if (document.all) document.all[''+id+''].style.visibility = "hidden"
else if (document.getElementById) document.getElementById(''+id+'').style.visibility = "hidden"
}
}
//-->