function display_signup(){
	document.getElementById('sign-up').style.display = "block";
}

function close_signup(){document.getElementById('sign-up').style.display = "none";}


function submit_join(input,form,field){
	apos = field.value.indexOf("@");
	dotpos = field.value.lastIndexOf(".");
	if (apos<1 || dotpos-apos<2) {
		alert("Please enter a valid email.");
	} else if($("#first_time").val() == 'true' && input == 'popup' && ($("#firstname").val()=='' || $("#lastname").val()=='')) {
		alert("Please enter both first name and last name.");
	} else if($("#first_time").val() == 'true' && input == 'ebook' && ($("#firstname_ebook").val()=='' || $("#lastname_ebook").val()=='')) {
		alert("Please enter both first name and last name.");
	} else {
		if(input == "popup"){
			fn = $("#firstname").val();
			ln = $("#lastname").val();
		} else if(input == "ebook"){
			fn = $("#firstname_ebook").val();
			ln = $("#lastname_ebook").val();
		}
		$.post("join.php", { email: field.value, firstname:fn, lastname:ln, first_time:$("#first_time").val() },
			function(data){
				//alert("data:"+data+" firstname:"+$("#firstname").val()+" lastname:"+$("#lastname").val()+" first_time:"+$("#first_time").val());
				if(data == "false"){
					//form.submit();
					if(input == "popup"){
						$("#firstlastname").css("display","block");
						$("#go").css("display","none");
						$("#joinemail").attr("readonly", "readonly");
					} else if(input == "ebook"){
						$("#firstlastname_ebook").css("display","block");
						$("#go_ebook").css("display","none");
						$("#ebookemail1").attr("readonly", "readonly");
					}
					$("#first_time").val('true');
				} else {
					window.location.reload();
				}
			}
		);
	}
}

function emailPage(){document.getElementById('emailPage').style.display = "block";}
function close_emailPage(){document.getElementById('emailPage').style.display = "none";}