/**
 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=1900;
var maxYear=2100;

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){
	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 numOnly(obj1)
{
	if(document.all)
	{
		
		if((obj1.keyCode >= 48 && obj1.keyCode  <= 57) || (obj1.keyCode == 45) || (obj1.keyCode == 32))
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{	
		
		
		if((obj1.which >= 48 && obj1.which  <= 57) || (obj1.which == 45) || (obj1.which == 32) || (obj1.which == 0) || (obj1.which == 8))
		{
			return true;
		}
		else
		{
			return false;
		}
	}
}
function intOnly(obj1)
{
	if(document.all)
	{
		
		if(obj1.keyCode >= 48 && obj1.keyCode  <= 57)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	else
	{	
		
		if((obj1.which >= 48 && obj1.which  <= 57) || (obj1.which == 0) || (obj1.which == 8))
		{
			return true;
		}
		else
		{
			return false;
		}
	}
}
function numOnly1(str)
{
	var filter  = /^([0-9]+[0-9\-\s])+$/;
	if(str == '')
	{
		return true;
	}
	else if (filter.test(str)) {
		return true;
	}
	else {
		return false;
	}
}
function alphaOnly(str)
{
	var filter  = /^([a-zA-Z]+[a-zA-Z\-\s])+$/;
	if(str == '')
	{
		return true;
	}
	else if (filter.test(str)) {
		return true;
	}
	else {
		return false;
	}
}
function alphanumOnly(str)
{
	var filter  = /^([a-zA-Z0-9]+[a-zA-Z0-9\-\.\_\s])+$/;
	if(str == '')
	{
		
		return true;
	}
	else if (filter.test(str)) {
		
		return true;
	}
	else {
		
		return false;
	}
}
function checkMail(str)
{
	
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(str == '')
		return true;
	else if (filter.test(str)) 
		return true;
	else 
		return false;
}

String.prototype.trim = function() { return this.replace(/^\s+|\s+$/, ''); };
function isEmpty(ctl){
	//alert('hi');
  if (ctl.value.trim()==''){
  	alert ('Please enter value.');
	
	return false
  }
  else 
    return true;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}
function chkCookie(name)
{
	if(readCookie(name)=='Back')
	{
		window.location='../index.php';
	}	
}