A simple javascript function to get the website base url.

function getBaseUrl(){
	var getUrl = window.location;
	var urlArr = getUrl.pathname.split('/');
	var baseUrl = getUrl.protocol + "//" + getUrl.host;
	if(getUrl.host == 'localhost' || getUrl.host == '127.0.0.1' || getUrl.host == 'yourLocalHostIp'){
		baseUrl += '/'+urlArr[1];
	}
	return baseUrl;
}