// JavaScript Document
// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

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 trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
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++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone){
var bracket=3;
strPhone=trim(strPhone);
if(strPhone.indexOf("+")>1) return false;
if(strPhone.indexOf("-")!=-1)bracket=bracket+1;
if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)return false;
var brchr=strPhone.indexOf("(");
if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")return false;
if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false;
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}


//To validate a mobile number 
// it will validate 0-9 numbers.
function ToCellValidate(objMobileNo)
{
	if(objMobileNo.value!="")
	{
		var incomingString=objMobileNo.value;
		//alert(incomingString);
		//alert('idx='+incomingString.search(/[^0-9-()+]/g));
		//alert(incomingString.replace(' ',''));
		if(incomingString.replace(' ','').length > 15 || incomingString.search(/[^0-9-()+]/g) != -1 )
		{
			alert('Please enter valid mobile number');
			objMobileNo.focus();
			objMobileNo.value="";
			return false;
		}
		else
			return true; 
	}
	else{
		return false;
	}
}