function userSubscribe(isSubscribe) {
	var contactname = $(".widget_ls_sms input[name='LS_ContactName']").val();
	var phonenumber = $(".widget_ls_sms input[name='LS_PhoneNumber']").val();
	var provider = $(".widget_ls_sms select[name='LS_Provider'] option:selected").val();
	
	var action = "Subscribe";
	if (isSubscribe == 0) action = "Unsubscribe";
	
	if ((contactname.length == 0) || (phonenumber.length == 0) || (provider.length == 0)) {
		$(".widget_ls_sms label").css("color", "#F00");
		$(".widget_ls_sms .error").removeClass("hide").addClass("show");
	} else {
		$.ajax({
			type: "post",
			url: "/wp-content/plugins/ls-sms_subscribe/insert.php",
			data: {
				contactname: contactname,
				emailaddress: phonenumber + provider,
				action: action
			},
			success: function() {
				$(".widget_ls_sms .form").empty();
				
				if (action == "Subscribe") $(".widget_ls_sms .thankyou").show();
				else if (action == "Unsubscribe") $(".widget_ls_sms .unsubscribe").show();
			}
		});
	}
	
	return false;
}