// **************** Function to fix window size *************************//
	function resizeWindow(){
		//alert("resize window");
		window.resizeTo(1024,768);
		//window.scrollbars(false)
	}

// **************** End of Function to fix window size *************************//

// **************** Function to check empty fields *************************//
// **************** its accepts value *************************//
	
	function isEmpty(mytext)
	{
		var re = /^\s{1,}$/g; //match any white space including space, tab, form-feed, etc. 
		if ((mytext.length==0) || (mytext==null) || ((mytext.search(re)) > -1)) {
		return true;
		}
		else {
		return false;
		}
	}


// **************** End of Function to check empty fields *************************//
// **************** its accepts value *************************//

// **************** Function to Trim white spaces from both ends *******************//
function trimAll(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);
	}
	//alert("'"+sString+"'");
	return sString;
}
// **************** End of Function to Trim white spaces from both ends *******************//

// **************** Function to check Alphanumeric entry *******************//
function validate(field) {	
	var valid = "abcdefghijklmnopqrstuvwxyz0123456789"
	var ok = "yes";
	var temp;
	var textValue = trimAll(field.value);
	//alert("textValue : " + textValue);
	for (var i=0; i<textValue.length; i++) {
		temp = "" + textValue.substring(i, i+1).toLowerCase();
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {		
		return false;
   }else
	   return true;
}
// **************** End of Function to check Alphanumeric entry *************//

// **************** Function to check Alphanumeric entry with spaces*******************//
function isAlphaNumericSpace(field) {
	//alert("field : " + field);
	var valid = "abcdefghijklmnopqrstuvwxyz0123456789 "
	var ok = "yes";
	var temp;
	var textValue = trimAll(field.value);
	for (var i=0; i<textValue.length; i++) {
		temp = "" + textValue.substring(i, i+1).toLowerCase();
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {		
		return false;
   }else
	   return true;
}
// **************** End of Function to check Alphanumeric entry with spaces*************//

// **************** Function to check only Character entry *******************//
function isCharacter(field) {
	//alert("field : " + field);
	var valid = "abcdefghijklmnopqrstuvwxyz "
	var ok = "yes";
	var temp;
	var textValue = trimAll(field.value);
	for (var i=0; i<textValue.length; i++) {
		temp = "" + textValue.substring(i, i+1).toLowerCase();
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {
		//alert("Invalid entry!  Only characters are accepted!");
		//field.focus();
		//field.select();
		return false;
   }else
	   return true;
}
// **************** End of Function to check Character entry *************//

// **************** Function to check only Character entry with No spaces *******************//
function isOnlyCharacter(field) {
	//alert("field : " + field);
	var valid = "abcdefghijklmnopqrstuvwxyz"
	var ok = "yes";
	var temp;
	var textValue = trimAll(field.value);
	for (var i=0; i<textValue.length; i++) {
		temp = "" + textValue.substring(i, i+1).toLowerCase();
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {
		//alert("Invalid entry! Only characters are accepted and No spaces!");
		//field.focus();
		//field.select();
		return false;
   }else
	   return true;
}
// **************** End of Function to check Character entry with No spaces *************//

// **************** Function to check only Numeric entry *******************//
function isNumeric(field) {
	//alert("field : " + field.value);
	var valid = "1234567890"
	var ok = "yes";
	var temp;
	for (var i=0; i<field.value.length; i++) {
		temp = "" + field.value.substring(i, i+1).toLowerCase();
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {
		//alert("Invalid entry!  Only Numbers are accepted!");
		//field.focus();
		//field.select();
		return false;
   }else
	   return true;
}
// **************** End of Function to check Numeric entry *************//

// **************** Function to check EMAIL entry *******************//
function validateEmail(field) {	
	var valid = "abcdefghijklmnopqrstuvwxyz0123456789@.-_"
	var ok = "yes";
	var temp;
	var textValue = trimAll(field.value);
	//alert("textValue : " + textValue);
	for (var i=0; i<textValue.length; i++) {
		temp = "" + textValue.substring(i, i+1).toLowerCase();
		if (valid.indexOf(temp) == "-1") ok = "no";
	}
	if (ok == "no") {		
		return false;
   }else
	   return true;
}
// **************** End of Function to check EMAIL entry *************//

// **************** Function to check email address *************************//
// **************** its accepts value *************************//
function CheckEmail(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		//alert("lstr : " + lstr);
		var lastChar = str.charAt(lstr-1);
		//alert("lastChar : " + lastChar);

		if (str.indexOf(at)==-1){
		   //alert("Invalid E-mail ID")
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		  // alert("Invalid E-mail ID")
		   return false
		}

		if (lastChar == "."){
			return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    //alert("Invalid E-mail ID")
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		   // alert("Invalid E-mail ID")
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    //alert("Invalid E-mail ID")
		    return false
		 }

 		 return true					
	}


// **************** Function to checkemail address *************************//
// **************** its accepts value *************************//

//***************** function to check the valid file *********************88/
    function isValidFile(file,ext){                
                var dotIndex = file.lastIndexOf(".");
                var fileext="";
                if(dotIndex != -1)
                {
                   fileext = file.substring(dotIndex+1,file.length);
                   fileext = fileext.toLowerCase();    
                }                                                
                        
               if(fileext == ext){
                    return true;
                }
                else
                {
                    return false;
                }
            
        }

//***************** function to check the valid file *********************/

// **************** Function to check Valid Date Entry *******************//
// Declaring valid date character, minimum year and maximum year
var dtCh= "/";
var minYear=2008;
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, fieldName){
	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 in mm/dd/yyyy in " + fieldName);
		return false;
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month in " + fieldName);
		return false;
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day in " + fieldName);
		return false;
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear + " in " + fieldName);
		return false;
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		alert("Please enter a valid date in " + fieldName);
		return false;
	}
return true;
}

function validateDate(){
	var dt=document.frmSample.txtDate;
	if (isDate(dt.value)==false){
		dt.focus();
		return false;
	}
    return true;
 }

// **************** End of Function to check Valid Date Entry *******************//