var dtCh= "-";
var minYear=1900;
var maxYear=2150;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr,sep){
	var dtCh='/'
	if(sep=='-') dtCh=sep	
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strMonth=dtStr.substring(0,pos1)
	var strDay=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		//alert("The date format should be : mm/dd/yyyy")
		return false
	}
	/*if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}*/
	
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		//alert("Please enter a valid day")
		return false
	}
	/*if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}*/
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date")
		return false
	}
return true
}

function isDateddmmyyyy(dtStr){
	if(dtStr==""){return true;}
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf("/")
	var pos2=dtStr.indexOf("/",pos1+1)
	var strDay=dtStr.substring(0,pos1)	
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		//The date format should be : dd/mm/yyyy
		return false
	}
	/*if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}*/
	
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		//alert("Please enter a valid day")
		return false
	}
	/*if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}*/
	if (dtStr.indexOf("/",pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, "/"))==false){
		//alert("Please enter a valid date")
		return false
	}
return true
}

function validateEmailv2(email)
{
// a very simple email validation checking. 
// you can add more complex email checking if it helps 
    if(email.length <= 0)
	{
	  return true;
	}
    var splitted = email.match("^(.+)@(.+)$");
    if(splitted == null) return false;
    if(splitted[1] != null )
    {
      var regexp_user=/^\"?[\w-_\.]*\"?$/;
      if(splitted[1].match(regexp_user) == null) return false;
    }
    if(splitted[2] != null)
    {
      var regexp_domain=/^[\w-\.]*\.[A-Za-z]{2,4}$/;
      if(splitted[2].match(regexp_domain) == null) 
      {
	    var regexp_ip =/^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
	    if(splitted[2].match(regexp_ip) == null) return false;
      }// if
      return true;
    }
return false;
}


function comparedate(sbeg,send) {	
	abeg = sbeg.split("/")
	aend = send.split("/")
	dbeg = abeg[0]; 
	if (abeg[0].substr(0,1) == "0")
		dbeg = abeg[0].substr(1,1);
	dend = aend[0]; 
	if (aend[0].substr(0,1) == "0")
		dend = aend[0].substr(1,1);
	
	mbeg = abeg[1]; 
	if (abeg[1].substr(0,1) == "0")
		mbeg = abeg[1].substr(1,1);
	mend = aend[1]; 
	if (aend[1].substr(0,1) == "0") {mend = aend[1].substr(1,1);}
	if (parseFloat(abeg[2]) > parseFloat(aend[2])) 
	{
		return false;
	}	
	else 
	{
		if (parseFloat(abeg[2]) == parseFloat(aend[2])) 
		{
			if (parseFloat(mbeg) > parseFloat(mend))
				return false;
			else if (parseFloat(dbeg) > parseFloat(dend) & parseFloat(mbeg) >= parseFloat(mend))
				return false;
		}
	}	
	return true;
}
function nonBlankValue(stringIn) {
	   var numn = stringIn.length;
	   for(i=0;i<stringIn.length;i++) {
			 if(stringIn.charAt(i)==" ") 
				 numn -=1;
	   }
	   return (numn);
}
function trim(sString) {
	while (sString.substring(0,1) == ' ') {
		sString = sString.substring(1, sString.length);
	}
	while (sString.substring(sString.length-1, sString.length) == ' ') {
		sString = sString.substring(0,sString.length-1);
	}
	return sString;
}

function trim_regexp(val){ 
	
	return val.replace(/^\s+|\s+$/g,"");
}
function checkCompanyName(name) {
	var re=/^[a-zA-Z0-9 ]+$/;
	if(name.match(re) == null)
	{
		return false;
	}
	return true;
}
function checkText2(name) {
	var re=/^[a-zA-Z0-9 &_\-]+$/;
	if(name.match(re) == null)
	{
		return false;
	}
	return true;
}
function checkTelephone(name) {
	var re=/^[0-9]+$/;
	if(name.match(re) == null)
	{
		return false;
	}
	return true;
}
function checkNumber(name) {
	var re=/^[0-9]+$/;
	if(name.match(re) == null)
	{
		return false;
	}
	return true;
}
function ShowHide(id, value) {
	var e = document.getElementById(id);
	e.className = value;
}
function checkInputXSS(str) 
{

            if (str != '') {

                        str = str.replace(/&lt;/gi, "<");

                        str = str.replace(/&gt;/gi, ">");

                        str = str.replace(/<script\s*?.*>?<\/script>/gi, "");

            }

            if (str != '') {

                        str = str.replace(/<script\s*?.*>/gi, "");

            }

            str = trim(str);

            return str;

}
/*function checkEmail(str) {
  var re=/^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,4}$/
  if (str.match(re)) {
  	if(str.indexOf('@')>32) return false;
	return true;
  } 
  return false;
}*/
function checkWebsite(str) {
  var re=/^[\w-]+([\w-]+\.)+[a-zA-Z]{2,4}$/
  var re1=/^http:\/\/[\w-]+([\w-]+\.)+[a-zA-Z]{2,4}$/
  
  if (str.match(re)) {
  	return true
  } 
  else if (str.match(re1)) {
  	return true
  } 
  else return false;
}