function validate(form, id){
	var name = form.name.value;
    var email = form.email.value;
    if (name == "") {
        alert("Please Enter your name");
    }
    else 
        if (email != "" || email == "") {
            var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
            if (reg.test(email) == false) {
                alert('Invalid Email Address');
            }
            else {
            	jQuery.noConflict();
            	 jQuery.ajax({
                    type: "GET",
                    url: "service-mail.php?name=" + name + "&email=" + email + "&id=" + id,
                    success: function(data){
                        if (data == "success") {
                        	jQuery("#"+id).text("Thank you, we've mailed you the download details.");
                        }
                        else {
                        	jQuery("#"+id).text("We encountered an error sending your mail.");
                        }
                    }
                });
            }
        }
}