function validateForm(frm)
{
	vName		= frm.name.value;
	vEmail		= frm.email.value;
	vPhone		= frm.phone.value;
	vMsg		= frm.msg.value;
	vCcode		= frm.security_code.value;
	
	var rname = /^[a-zA-Z ]+$/;	

	
	if(vName == '' || vName == 'Name')
	{
		alert("Please enter your Name.")
		frm.name.focus();
		return false;
	}
	else if(!rname.test(vName))
	{
		alert("Enter a valid Name");
		frm.name.focus();
		return false;
	}
	else if (vEmail=="" || vEmail == 'Email')
   {
		alert("Please Enter your Email ID");
		frm.email.focus();
		return false;
	}
	
	if (echeck(vEmail)==false){
		
		frm.email.focus();
		return false
	}
	else if(vPhone == '' || vPhone == 'Contact No.')
	{
		alert("Please enter your phone number.")
		frm.phone.focus();
		return false;
	}
	else if(checkInternationalPhone(vPhone)==false)
	{
		alert("Please enter your valid phone number.")
		frm.phone.focus();
		return false;
	}
	else if(vMsg == '' || vMsg == 'Your Comments.')
	{
		alert("Please enter your Question.")
		frm.msg.focus();
		return false;
	}
	else if(vCcode == '' || vCcode == 'Enter Code')
	{
		alert("Please enter the security code")
		frm.security_code.focus();
		return false;
	}
	
	
}

var digits = "0123456789";
var phoneNumberDelimiters = "()- ";
var validWorldPhoneChars = phoneNumberDelimiters + "+";
var minDigitsInIPhoneNumber = 10;
function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    return true;
}
function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}
function checkInternationalPhone(strPhone){
var bracket=3
strPhone=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 echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		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 (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					
	}