My attemp to learn jQuery!

common.js

$(".subject").click( function() {
	var count = 0;
	var message_id = $(".subject").data("message-id");
	if (count == 0) {
		$.get("/friends_com/messages/view/"+message_id+"", function(data) {
			count = 1;
			console.log(data + count);
			$("#message_content").html(data + count);
		});
	} else if (count == 1) {
		count = 0;
		console.log('error');
		$("#message_content").slideToggle("fast");
	}

});