var ErrorMsg="Error On Page";
 var blnError=false;
 var objFocus;
 
  
 //validate textbox 
//pass only textbox id not used documet.getElement()
//and Error message that you want to display for Error
//all ready used the document.getElementID so do not pass with getElementID

 
 function ValidationText(objText,objErrorMsg) {
	if((RequiredValidate($(objText))==false))	{
		if (blnError==false){
				objFocus=objText;
			}
		blnError=true;
		ErrorMsg+="\n   "+ objErrorMsg;
		ErrorMsg+="\n   -------------";
	}
 }
 //this function is reterive the validation is Correct or wrong of above function
 function getValidationSummary()
 {
	if (blnError==true)
	{
		blnError=false;
		alert(ErrorMsg);
		ErrorMsg="Error On Page";
		$(objFocus).focus;
		return false;
	}
	else
	{
		blnError=false;
		ErrorMsg="Error On Page";
		return true;
	}
 }
 
 
 function CompareText(objText1,objText2,objErrorMsg)
 {
	if(($(objText1)).value!=($(objText2)).value)
	{
		if (blnError==false){
				objFocus=$(objText1);
			}
		blnError=true;
		ErrorMsg+="\n   "+ objErrorMsg;
		ErrorMsg+="\n   -------------";
	}
 }
 
 //objDLL is the dropdownlist box id
 //objval is the value that is not allowed in combo
 //objErrorMsg is the Error message for invalid
 function validateDDL(objDDL,objVal,objErrorMsg)
 {
	//if(($(objDDL).value == null) || ($(objDDL).value ==objVal))
	//if(RequiredDDL($(objDDL),objVal)==false)
	if(RequiredDDL(objDDL,objVal)==false)
	{
		if (blnError==false){
				objFocus=objDDL;
			}
		blnError=true;
		ErrorMsg+="\n   "+ objErrorMsg;
		ErrorMsg+="\n   -------------";
	}
 }
 
 function RequiredDDL(objDDL,objVal)
 {
	if(($(objDDL).value == null) || ($(objDDL).value =="0") || ($(objDDL).value ==objVal))
	{
		return false;
	}
	return true;
 }
 
 function RequiredValidate(objtxt)
 {
			//reg for Required Field
	var regexChk = /[^\s\n]+/ ;
	if(regexChk.test(objtxt.value)==false)
	{
		return false;
	}
	else
	{
		return true;
	}
}

 //objDLL is the dropdownlist box id
 //objval is the value that is not allowed in combo
 //objErrorMsg is the Error message for invalid
 function validateNumeric(objTxt,objErrorMsg)
 {
	//if(($(objDDL).value == null) || ($(objDDL).value ==objVal))
	//if(RequiredDDL($(objDDL),objVal)==false)
	var regexChk =  /(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/;
	
	if(regexChk.test($(objTxt).value)==false)
	{
		if (blnError==false){
				objFocus=$(objTxt);
			}
		blnError=true;
		ErrorMsg+="\n   "+ objErrorMsg;
		ErrorMsg+="\n   -------------";
	}
 }
 
 
 
 function validateEmail(objTxt,objErrorMsg)
 {
	//if(($(objDDL).value == null) || ($(objDDL).value ==objVal))
	//if(RequiredDDL($(objDDL),objVal)==false)
	var regexChk = /^(([^<>()[\]\\.,;:\s@\""]+(\.[^<>()[\]\\.,;:\s@\""]+)*)|(\"".+\""))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
	
	if(regexChk.test($(objTxt).value)==false)
	{
		if (blnError==false){
				objFocus=$(objTxt);
			}
		blnError=true;
		ErrorMsg+="\n   "+ objErrorMsg;
		ErrorMsg+="\n   -------------";
	}
 }

 // regular expression to match required date format

function validateDate(objTxt,objErrorMsg)
{
	var regexChk = /(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.](19|20)\d\d/
	
	if(regexChk.test($(objTxt).value)==false)
	{
		if (blnError==false)
		{
				objFocus=$(objTxt);
		}
		blnError=true;
		ErrorMsg+="\n   "+ objErrorMsg;
		ErrorMsg+="\n   -------------";
	}
}
 
		
/// used for document.getElementID in java script this a prototype		
function $() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (arguments.length == 1)
			return element;
		elements.push(element);
	}
	return elements;
}

function trimAll( strValue ) {
/* 
***********************************************
DESCRIPTION: Removes leading and trailing spaces.

PARAMETERS: Source string from which spaces will
  be removed;

RETURNS: Source string with whitespaces removed.
************************************************
*/
 var objRegExp = /^(\s*)$/;

    //check for all spaces
    if(objRegExp.test(strValue)) {
       strValue = strValue.replace(objRegExp, '');
       if( strValue.length == 0)
          return strValue;
    }

   //check for leading &amp; trailing spaces
   objRegExp = /^(\s*)([\W\w]*)(\b\s*$)/;
   if(objRegExp.test(strValue)) {
       //remove leading and trailing whitespace characters
       strValue = strValue.replace(objRegExp, '$2');
    }
  return strValue;
}
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 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
}
function ValidateDateDDMMYYYY(objTxt,objErrorMsg)
{
	debugger;
	if (isDate(($(objTxt)).value)==false)
	{
		if (blnError==false){
				objFocus=$(objText);
			}
		blnError=true;
		ErrorMsg+="\n   "+ objErrorMsg;
		ErrorMsg+="\n   -------------";
	}
	
}