// JavaScript Document

function validatefield()
{
		if(document.getElementById('txtname').value=="")
		{
			alert("Please Enter Your Name");
			document.getElementById('txtname').focus();
			return false;
		}
		if(document.getElementById('txtemail').value=="")
		{
			alert("Please Enter Your  EmailId");
			document.getElementById('txtemail').focus();
			return false;
		}
		if(document.getElementById('txtemail').value.indexOf('@',0) < 0)
		{
			alert("Please Enter Valid  EmailId");
			document.getElementById('txtemail').focus();
			return false;
		}
		if(document.getElementById('txtemail').value.indexOf('.',0) < 0)
		{
			alert("Please Enter Valid  EmailId");
			document.getElementById('txtemail').focus();
			return false;
		}
		if(document.getElementById('txtphone').value=="")
		{
			alert("Please Enter Your  Phone Number");
			document.getElementById('txtphone').focus();
			return false;
		}
		
		var Phone=document.services.txtphone
	
	if ((Phone.value==null)||(Phone.value=="")){
		alert("Please Enter your Phone Number")
		Phone.focus()
		return false
	}
	if (checkInternationalPhone(Phone.value)==false){
		alert("Please Enter a Valid Phone Number")
		Phone.value=""
		Phone.focus()
		return false
	}
	if(document.getElementById('txtmsg').value=="")
		{
			alert("Please Enter Message");
			document.getElementById('txtmsg').focus();
			return false;
		}
		document.getElementById('formnumber').value=1;
		return true;
}
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);
}

function resetvalue()
{
	document.getElementById('txtname').value==""
	document.getElementById('txtemail').value==""
	document.getElementById('txtphone').value==""
	document.getElementById('txtmsg').value==""
}