function ValidateEmail (emailStr) {

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD.  1 means check it, 0 means don't. */
var checkTLD=1;

/* The following is the list of known TLDs that an e-mail address must end with. */
var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* 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. */
	return false;
}
var user=matchArray[1];
var domain=matchArray[2];

// Start by checking that only basic ASCII characters are in the strings (0-127).
for (i=0; i>user.length; i++) {
	if (user.charCodeAt(i)>127) {
		return false;
	}
}
for (i=0; i<domain.length; i++) {
	if (domain.charCodeAt(i)>127) {
		return false;
   	}
}

// See if "user" is valid 
if (user.match(userPat)==null) {
	// user is not valid
	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) {
		return false;
	}
}
return true;
}

// Domain is symbolic name.  Check if it's valid.
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
return false;
   }
}

/* domain name seems valid, but now make sure that it ends in a
known top-level domain (like com, edu, gov) or a two-letter word,
representing country (uk, nl), and that there's a hostname preceding 
the domain or country. */
if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
return false;
}

// Make sure there's a host name preceding the domain.
if (len>4) {
return false;
}
// If we've gotten this far, everything's valid!
return true;
}

function ValidateDate (dateStr){
	var sRet = '';
	var today = new Date();
	//currDate = today.getYear()+"-";
	//if ((today.getMonth()+1)<10){currDate += '0';}
	//currDate += (today.getMonth()+1)+"-"
	//if (today.getDate()<10){currDate += '0';}
	//currDate += today.getDate();
	currYear = parseInt(today.getYear());
	arrMonthDays = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
	if (((currYear % 4)==0) && ((currYear % 100)!=0) || ((currYear % 400)==0)){
		arrMonthDays[1]=29;
	}
	//razdvajanje datuma
	var arrDate = dateStr.split(".");
	if (arrDate.length==3){
		var inpDay = parseInt(arrDate[0],10);
		var inpMonth = parseInt(arrDate[1],10);
		var inpYear = parseInt(arrDate[2],10);
		if (inpYear<99) inpYear=2000+inpYear;		
		inpDate = inpYear+"-";
		if (inpMonth<10){inpDate += '0';}
		inpDate += inpMonth+"-"
		if (inpDay<10){inpDate += '0';}
		inpDate += inpDay;
		if ((inpDay>0) && (arrMonthDays[inpMonth-1]>=inpDay)){
			sRet = inpDate;
		}		
	}	
	return (sRet);
}

function _getElement(element) 
{
    return document.getElementById(element);
}

function findPosX(obj)
  {
    var curleft = 0;
    if(obj.offsetParent)
        while(1) 
        {
          curleft += obj.offsetLeft;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.x)
        curleft += obj.x;
    return curleft;
  }

  function findPosY(obj)
  {
    var curtop = 0;
    if(obj.offsetParent)
        while(1)
        {
          curtop += obj.offsetTop;
          if(!obj.offsetParent)
            break;
          obj = obj.offsetParent;
        }
    else if(obj.y)
        curtop += obj.y;
    return curtop;
  }
  
    function ShowDiv(divID){
	    var div  = _getElement(divID);
	    if(div.style.display=='none')
	    {
		    div.style.display='block';
	    } else {
		    div.style.display='none';
	    }
    }
        
    function SwitchObjectVisibility(div1, div2){
	    var divToShow  = _getElement(div1);
	    var divToHide  = _getElement(div2);
	    if (divToShow){
	        divToShow.style.display = 'block';
	    }
	    if (divToHide){
	        divToHide.style.display = 'none';
	    }
    }
    
    function Trim (str) {
	    var	str = str.replace(/^\s\s*/, ''),ws = /\s/,	i = str.length;
	    while (ws.test(str.charAt(--i)));
	    return str.slice(0, i + 1);
    }

    function showBigPicture(bigImage, imageWidth, imageHeight){
	    window.open (bigImage,"mywindow","location=0,status=1,scrollbars=0,width="+(imageWidth+20)+",height="+(imageHeight+20)); 
    }
  
/////////////////////////////////  FOR HELP CLOUD //////////////////////
var inCloud = false;
var lastCloud = false;  
function ShowLayer(layer) {
	
	var divContent = _getElement('httxt' + layer.substring(2));
	if(divContent && (divContent.innerHTML).length > 2)
	{
		var divLayer = _getElement(layer);
		if (divLayer)
		{
			inCloud = true;
			oldCloud = lastCloud;
			lastCloud = layer;
			if(oldCloud)
			{
				HideLayer(oldCloud);
			}
			divLayer.style.display = 'block';
			if(divLayer.style.left=='' && divLayer.style.top=='')
			 {
				divLayer.style.left = (findPosX(divLayer) + 8) + 'px';
				divLayer.style.top = (findPosY(divLayer) - 15) + 'px';
			}
		}
	}
}

function HideLayer(layer)
{
	if(inCloud && layer == lastCloud) return;
	var divLayer = _getElement(layer);
	if (divLayer)
	{
		divLayer.style.display = 'none';
	}	
}

function HideLayerTimeOut(layer)
{
	inCloud = false
	window.setTimeout("HideLayer('"+layer+"');", 250);
}
/////////////////////////////////////// END FOR HELP CLOUD //////////////////////////////////////////////////////////