// JavaScript Document
function nameFieldFocus(field)
{
	if (field.value="--Your name--")
		field.value="";
}
function nameFieldBlur(field) {
	if (field.value == "") {
		field.value = "--Your name--";
	}
}
function emailFieldFocus(field) {
	if (field.value="--Your e-mail id--")
		field.value="";
}
function emailFieldBlur(field) {
	if (field.value == "") {
		field.value = "--Your e-mail id--";
	}
}

function validateEmail() {
		var str = document.getElementById("txtemail").value;
		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 subscribe()
{
	
	if(document.subscribeform.txtname.value == "" || document.subscribeform.txtname.value == "--Your name--")
	{
	alert("Please enter your name");
		    return false;	
	}
	else if (validateEmail())
	{
		//var email = document.getElementById("txtemail").value;
		var subs = doSubscribe();
	}
	else 
	return false;
}

function doSubscribe()
{
var name = document.getElementById("txtname").value;
var email = document.getElementById("txtemail").value;
$.post("subscription.php", {nam: name, ema: email},
			function(data)
			{ 
				 $("#subsstatus").html(data);
			}
	  );
}