function toDown(downloadUrl, objectId, visitUrl, courseid, belongSchoolId,
		sectionid) {
	try {
		addResourceVisit(objectId, visitUrl, courseid, belongSchoolId,
				sectionid);
	} catch (e) {
	}
	location.href = downloadUrl;
}
function addResourceVisit(objectId, visitUrl, courseid, belongSchoolId,
		sectionid) {
	var usetime = new Date().getTime();
	jQuery.ajax({
		type : "get",
		url : "https://fanyazyk2.chaoxing.com/resource/api/downloadOrQuote",
		data : {
			"type" : 2,
			"usetime" : usetime,
			"courseid" : courseid,
			"objectId" : objectId,
			"url" : visitUrl,
			"fid" : belongSchoolId,
			"sectionid" : sectionid
		},
		dataType : 'jsonp',
		jsonp : "jsonpCallback",
		success : function(data) {
			// window.location.reload();
		},
		error : function(data) {
		}
	});
}