lnapp/media/js/search.js

$(document).ready(function() {
	$("input[name=search-query]").typeahead({
		minLength: 2,
		source: function (query,process) {
			if(query.length==0) return false;

			search('u/search/ajaxlist',query,process);
		},

		matcher: function () { return true; },

		updater: function (item) {
			window.parent.location.href = site_url+users[item];
		},
	});
});

var c=0;
var search = _.debounce(function(url,query,process){
	$.ajax({
		url : site_url+url,
		type : 'GET',
		data : 'term=' + query,
		dataType : 'JSON',
		async : true,
		cache : false,
		beforeSend : function() {
			if (c++ == 0)
				$('i[name=searching]').removeClass("hidden");
		},
		success : function(data) {
			// if json is null, means no match, won't do again.
			if(data==null || (data.length===0)) return;

			users = {};
			userLabels = [];

			_.each(data,function(item,ix,list) {
				if (_.contains(users,item.label))
					item.label = item.label + ' #' + item.value;

				userLabels.push(item.label);
				users[item.label] = item.value;
			});

			process(userLabels);
		},
		complete : function() {
			if (--c == 0)
				$('i[name=searching]').addClass("hidden");
		}
})
}, 500);