// JavaScript Document


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
}
function validate_required(name)
{
with (field)
{
if (value==null||value=="")
{
alert(alerttxt);return false;
}
else
{
return true;
}
}
}
function ValidateForm(){

if (document.myform.firstname.value=="")
{
alert("Please Enter Name");
document.forms.myform.firstname.focus();
return false;
}

var emailID=document.myform.email
if ((emailID.value==null)||(emailID.value=="")){
alert("Please Enter your Email ID");
document.forms.myform.email.focus();
return false;
}
if (echeck(emailID.value)==false){
emailID.value="";
document.forms.myform.email.focus();
return false;
}

if (document.myform.phone.value == "")
{
alert("Please Enter Telephone No");
document.forms.myform.phone.focus();
return (false);
}

if (document.myform.phone.value.length > 15)
{
alert("Don't enter morethat 15 numbers");
document.forms.myform.phone.focus();
return (false);
}

// only allow numbers to be entered
var checkOK = "0123456789";
var checkStr = document.forms.myform.phone.value;
var allValid = true;
var allNum = "";
for (i = 0;  i < checkStr.length;  i++)
{
ch = checkStr.charAt(i);
for (j = 0;  j < checkOK.length;  j++)
if (ch == checkOK.charAt(j))
break;
if (j == checkOK.length)
{
allValid = false;
break;
}
if (ch != ",")
allNum += ch;
}
if (!allValid)
{
alert("Please enter only digit characters in the \"numbers\" field.");
document.forms.myform.phone.focus();
return (false);
}

if (document.myform.message.value=="")
{
alert("Please Enter Your Query");
document.forms.myform.message.focus();
return false;
}

}