Signup = {
	init: function(){
		$('#user_username').keyup(Signup.update_profile_url);
		$("input,select").each(function(){
		    var focus = "focus_" + this.id.replace('_1i','').replace('_2i','').replace('_3i','');
		    $(this).bind("focus", function(){ 
				$('#' + focus).css("visibility", "visible"); 
				$(this).addClass("yellow");
			}).bind("blur", function() { 
				$('#' + focus).css("visibility", "hidden");
				$(this).removeClass("yellow");
			});
		});

	},
	update_profile_url: function() {
		$('#profile_url').text(this.value);
	}
}

$(document).ready(Signup.init)