摘要：1. What is DOM? DOM is an abbrieviattion for Document Object Model. DOM represent a page as a tree which consists of nodes. therefore , we can manipulate these nodes in order to modify and self-d... 阅读全文

摘要：About the script in my page:AJAX Asynchronous JavaScript and XML. Q: why do u create an http_request_check? what 's the use ? A: the object http_request_check is an object through which we s... 阅读全文

摘要：Q: does AJAX use still use a request/response model? A: Actually, your pages are still making request and getting responses. you 'are using a different approach in how you make those requests and hand... 阅读全文

摘要：ajax architecture 1.Intitial XMLHttpRequest object and send the Request; 2. assign the process function for the request; 3.send out the http request; 4.process the return result from s... 阅读全文