define([], function() {
	var loadDiv = document.createElement("div");
	loadDiv.setAttribute("style", "position:absolute;top:49%;width:200px;");
	var w = loadDiv.style.width;
	var w1 = (document.body.clientWidth - w.substring(0, w.length - 2)) / 2;
	loadDiv.style.left = w1 + "px";
	loadDiv.innerHTML = "<img style='display:block;width:58px;height:58px;margin-left:65px;' src='/public/images/loadding.gif'><p style='font-size:16px;text-center:center;'>页面加载中，请您耐心等待 </p >";
	document.body.appendChild(loadDiv);
	return function(styleSheets, app) {
		//init loading...
		require({
			cacheBust: true
		}, ["app/config"], function(config) {
			require({
				cacheBust: config.ver ? config.ver : false
			}, ["js/appfs"], function() {
				startapp(config);
			});
		});

		function startapp(config) {
			return require({
				cacheBust: config.dojo ? config.dojo : false
			}, ["js/dojo.all"], function() {
				//close loading.
				require({
					cacheBust: config.debug ? (config.ver ? config.ver : false) : false
				}, ["util/css"], function(css) {
					css(styleSheets, function() {
						if (app)
							require([app], function(obj) {
								document.body.removeChild(loadDiv);
							});
					});
				});
			});
		}
	}
})