在JavaScript中引用引用JS文件或css文件

JavaScript：head=document.getElementsByTagName('head').item(0);CreateLink("css/test.css");CreateScript("js/test.js");function CreateScript(file){var new_element;new_element=document.createElement("script");new_element.setAttribute("type","text/javascript");new_element.setAttribute("src",file);void(head.appendChild(new_element));}function CreateLink(file){var new_element;new_element=document.createElement("link");new_element.setAttribute("type","text/css");new_element.setAttribute("rel","stylesheet");new_element.setAttribute("href",file);void(head.appendChild(new_element));}