$(document).ready(function() {
    $('#jon').click(function(){
		
	if($('#nemail').val()=='' || $('#nemail').val()=='Enter your e-mail address')
	{
	alert("Please enter your e-mail address");
	$('#nemail').focus();
	return false;
	} 
	
	var validemail =$('#nemail').val().search(/^([a-zA-Z0-9_.-])+@([a-zA-Z0-9_.-])+\.([a-zA-Z])+([a-zA-Z])+/);

if(validemail==-1){
	alert("Please enter valid email ID");
	$('#nemail').focus();
	return false;
} else{

	$.post("send-newsletter.php", { nemail: $('#nemail').val()},
					   function(data) {
				//alert(data);
				document.getElementById('msg').innerHTML=data;    
				//alert(msg);
		 });

}

	
	
	});
   
 });