function blagajna_polja(vrednost)
{
  document.getElementById('pravna_oseba').style.display = 'none';
  document.getElementById('pravna_oseba_placilo').style.display = 'none';
  document.getElementById('fizicna_oseba').style.display = 'block';
  document.getElementById('fizicna_oseba_dostava').style.display = 'block';
  document.getElementById('fizicna_oseba_placilo').style.display = 'block';

  if (vrednost==2)
  {
  	document.getElementById('fizicna_oseba').style.display = 'none';
  	document.getElementById('fizicna_oseba_dostava').style.display = 'none';
  	document.getElementById('fizicna_oseba_placilo').style.display = 'none';
  	document.getElementById('pravna_oseba').style.display = 'block';
  	document.getElementById('pravna_oseba_placilo').style.display = 'block';
  }

    /*
  	if (document.getElementById('dostava').value=='dostava_podatki_3' && vrednost==1)
  	{
  		document.getElementById('dostava').value = 'dostava_podatki_1';

  		dostava_podatki ('dostava_podatki_1');
  	}
  	*/


}

function dostava_podatki(div)
{
	document.getElementById('dostava_podatki_2').style.display = 'none';
	document.getElementById('dostava_podatki_3').style.display = 'none';
	document.getElementById('dostava_podatki_4').style.display = 'block';
	document.getElementById('dostava_podatki_5').style.display = 'none';
	document.getElementById('dostava_podatki_6').style.display = 'block';

	document.getElementById(div).style.display = 'block';

	if (div=='dostava_podatki_3')
	{
		document.getElementById('placilo').value = 2;
		document.getElementById('dostava_podatki_4').style.display = 'none';
		document.getElementById('dostava_podatki_5').style.display = 'block';
		document.getElementById('dostava_podatki_6').style.display = 'none';
	}

}


<!-- Changes:  Sandeep V. Tamhankar (stamhankar@hotmail.com) -->

/* 1.1.2: Fixed a bug where trailing . in e-mail address was passing
            (the bug is actually in the weak regexp engine of the browser; I
            simplified the regexps to make it work).
   1.1.1: Removed restriction that countries must be preceded by a domain,
            so abc@host.uk is now legal.  However, there's still the
            restriction that an address must end in a two or three letter
            word.
     1.1: Rewrote most of the function to conform more closely to RFC 822.
     1.0: Original  */

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
function emailCheck (emailStr) {
/* The following pattern is used to check if the entered e-mail address
   fits the user@domain format.  It also is used to separate the username
   from the domain. */
var emailPat=/^(.+)@(.+)$/
/* The following string represents the pattern for matching all special
   characters.  We don't want to allow special characters in the address.
   These characters include ( ) < > @ , ; : \ " . [ ]    */
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
/* The following string represents the range of characters allowed in a
   username or domainname.  It really states which chars aren't allowed. */
var validChars="\[^\\s" + specialChars + "\]"
/* The following pattern applies if the "user" is a quoted string (in
   which case, there are no rules about which characters are allowed
   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
   is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")"
/* The following pattern applies for domains that are IP addresses,
   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
   e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
/* The following string represents an atom (basically a series of
   non-special characters.) */
var atom=validChars + '+'
/* The following string represents one word in the typical username.
   For example, in john.doe@somewhere.com, john and doe are words.
   Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")"
// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
/* The following pattern describes the structure of a normal symbolic
   domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


/* Finally, let's start trying to figure out if the supplied address is
   valid. */

/* Begin with the coarse pattern to simply break up user@domain into
   different pieces that are easy to analyze. */
var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
  /* Too many/few @'s or something; basically, this address doesn't
     even fit the general mould of a valid e-mail address. */
	alert("E-mail naslov ni pravilen (preveri @ in .)")
	return false
}
var user=matchArray[1]
var domain=matchArray[2]

// See if "user" is valid
if (user.match(userPat)==null) {
    // user is not valid
    alert("Uporabniško ime ni pravilno.")
    return false
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
   host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("IP naslov ni pravilen!")
		return false
	    }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
	alert("Domena ni pravilna.")
    return false
}

/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding
   the domain or country. */

/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 ||
    domArr[domArr.length-1].length>4) {
   // the address must end in a two letter or three letter word.
   alert("E-mail naslov se mora končati z dvo, tro, ali štiri mestno kodo.")
   return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="V E-mail naslovu ni domene!"
   alert(errStr)
   return false
}

// If we've gotten this far, everything's valid!
return true;
}
//  End -->

<!-- Skripta za brisanje textboxa -->
	function clearText(thefield){
		if (thefield.defaultValue==thefield.value)
		thefield.value = ""
	}

function toggleLayer( whichLayerHide, whichLayerShow )
{
	var elem, vis;
	if( document.getElementById ) // this is the way the standards work
		elem = document.getElementById( whichLayerHide );
	else if( document.all ) // this is the way old msie versions work
		elem = document.all[whichLayerHide];
	else if( document.layers ) // this is the way nn4 works
		elem = document.layers[whichLayerHide];

	vis = elem.style;  // if the style.display value is blank we try to figure it out here

	if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
		vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';

	vis.display = (vis.display==''||vis.display=='block')?'none':'block';

	if (whichLayerShow!=='')
	{		if( document.getElementById ) // this is the way the standards work
			elem = document.getElementById(whichLayerShow);
		else if( document.all ) // this is the way old msie versions work
			elem = document.all[whichLayerShow];
		else if( document.layers ) // this is the way nn4 works
			elem = document.layers[whichLayerShow];

		vis = elem.style;

		vis.display = 'block';
	}
}


function setCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}