/**
client Side validation function
Returns true or false
*/

/*
Purpose :-  Tostrip string from leading and trailing spaces
*/
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);
}
return sString;
}





/*
Purpose :-  Tocheck whether the passed parameter is blank or not
*/

function validate_required_field($strold)
{
	//$str='' ? return false : return true;  STATMENT NOT WORKING
$str=trimAll($strold)	
	
	if($str!='')
	{
		return true;
	}
	else
	{
		return false;
	}
}


/*
Purpose :-  Tocheck whether the passed parameter is numeric or not
*/
function validate_numeric_only(id)
{
	var str="0123456789"; 
	var i=0; 
	id=id.replace(/(\s+)$/,""); 
	id=id.replace(/^(\s+)/,""); 

	for(i=0;i<id.length;i++)
	{
		if(id.charAt(i)!=' ') 
		{ 
			if (str.indexOf(id.charAt(i)) == -1) 
			{ 
				return false; 
			} 
		}
	}
	return true;
}

/*
Purpose :-  Tocheck whether the passed parameter is alphabetic or not
*/
function validate_alpha_only(id)
{
	var str="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; 
	var i=0; 
	id=id.replace(/(\s+)$/,""); 
	id=id.replace(/^(\s+)/,""); 

	for(i=0;i<id.length;i++)
	{
		if(id.charAt(i)!=' ') 
		{ 
			if(str.indexOf(id.charAt(i)) == -1) 
			{ 
				return false; 
			} 
		}
	}
	return true;
}


/*
Purpose :-  Tocheck whether the passed parameter is alphanumeric or not
*/
function validate_alphanum_only(id)
{
	var str="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; 
	var i=0; 
	id=id.replace(/(\s+)$/,""); 
	id=id.replace(/^(\s+)/,""); 

	for(i=0;i<id.length;i++)
	{
		if(id.charAt(i)!=' ') 
		{ 
			if(str.indexOf(id.charAt(i)) == -1) 
			{ 
				return false; 
			} 
		}
	}
	return true;
}

/*
Purpose :-  Tocheck whether the passed parameter is valid email id or not
*/
function validate_email(s)
{
	var re;
	re = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,})+$/;
	if (re.test(s) == true)
		return true;
	else
		return false;
}


// 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 validatephone(phone)
{
//var alphaExp1 =/(^\(+[0-9]+\)+[0-9]+$)|(^[0-9]+$)/;
var alphaExp1 =/^[\+\-0-9\s]+$/;
	
	if(phone.search(alphaExp1)==-1)
	return false
    else
	return true
}
/*

function fun_validateDate(dtStr)
{
	var dtCh= "-";
	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 ValidateForm(dt)
{
	if(fun_validateDate(dt.value)==false)
	{
		dt.focus()
		return false
	}
	return true
}
*/