function IsValidDate(Day,Mn,Yr){
    var DateVal =Day + "/" + Mn + "/" +Yr ;
	//alert();
    var dt = new Date(DateVal);

    if(dt.getDate()!=Day){
        alert('Invalid Date');
        return(false);
        }
    else if(dt.getMonth()!=Mn-1){
    //this is for the purpose JavaScript starts the month from 0

        alert('Invalid Date');
        return(false);
        }
    else if(dt.getFullYear()!=Yr){
        alert('Invalid Date');
        return(false);
        }
    return(true);
 }
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 IsNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.-";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
   }


function validemail(emailStr)
{	
	var err=0;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);
	if (matchArray==null) {
		
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	if (user.match(userPat)==null) {
	  
	    return false;
	}
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
	  for (var i=1;i<=4;i++)
	  {
	    if (IPArray[i]>255)
	    {
		  
		   return false;
		}
	  }
	    return true;
	}
	var domainArray=domain.match(domainPat);
	if (domainArray==null) {
	
		return false;
	}
	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>3) {
	
	   return false;
	}
	if (len<2) {
	   
	   return false;
	}
	return true;
}

function is_valid_text(data)
{
     reWhiteSpace = new RegExp(/\s/g);
     // Check for white space
     if (reWhiteSpace.test(data)) {          
          return false;
     }
	 
   var iChars = "!@#$%^&*()+=[]\\\';,./{}|\":<>?~"; 
   for (var i = 0; i < data.length; i++) {
  	if (iChars.indexOf(data.charAt(i)) != -1) {  	  
  	return false;
  	}
  }	
  return true;
}	

function IsValidName(str){
	
	
		var nameExp = /^[a-zA-Z'-0-9 .\s]{1,40}$/;
	
		return nameExp.test(str);
}

function IsValidDesc(str){
	
		var descExp = /^[a-zA-Z0-9 ',:&;.\/\s%]{1,2000}$/;
	
		return descExp.test(str);
}
function IsValidAddrs(str){
	
		var descExp = /^[a-zA-Z0-9 ',:&#-;.\/\s%]{1,400}$/;
	
		return descExp.test(str);
}

function IsValidPhone(str){
	
		var phoneExp = /^[0-9-\s]{1,40}$/;
	
		return phoneExp.test(str);
}
function IsValidPincode(str){
	
		var phoneExp = /^[0-9-\s]{1,6}$/;
	
		return phoneExp.test(str);
}


function Trim(str)
{
    while (str.substring(0,1) == ' ') // check for white spaces from beginning
    {
        str = str.substring(1, str.length);
    }
    while (str.substring(str.length-1, str.length) == ' ') // check white space from end
    {
        str = str.substring(0,str.length-1);
    }
    return str;
}
function isDate(dtStr){
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,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){
		alert("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(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}