var XMLHttpReq; 	//創建XMLHttpRequest對象           function createXMLHttpRequest() {		if(window.XMLHttpRequest) { //Mozilla 瀏覽器			XMLHttpReq = new XMLHttpRequest();		}		else if (window.ActiveXObject) { // IE瀏覽器			try {				XMLHttpReq = new ActiveXObject("Msxml2.XMLHTTP");			} catch (e) {				try {					XMLHttpReq = new ActiveXObject("Microsoft.XMLHTTP");				} catch (e) {}			}		}	}	// 處理分類更改響應函數    function sortChangeResponse() {    	if (XMLHttpReq.readyState == 4) { // 判斷對象狀態        	if (XMLHttpReq.status == 200) { // 信息已經成功返回，開始處理信息	            updateArticleList();            } else { //頁面不正常                window.alert("您所請求的頁面有異常。");            }        }    }	// 選擇分類函數	function sortChange() {        var sortid = document.getElementById("sort").value;	    var url = "action=show" + "&sortid="+ sortid;	    createXMLHttpRequest();	    XMLHttpReq.onreadystatechange = sortChangeResponse;	    XMLHttpReq.open("POST", "adminArticle", true);    	XMLHttpReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");    	    XMLHttpReq.send(url);	}	function updateArticleList() {		clearArticleList();		loadArticleList(); 		}	// 刪除鏈接函數	function deleteArticle(id) {	    var url = "adminArticle?action=delete" + "&articleid=" + id;	    createXMLHttpRequest();	    XMLHttpReq.onreadystatechange = DeleteStateChange;	    XMLHttpReq.open("GET", url, true);	    XMLHttpReq.send(null);	}	// 處理刪除鏈接響應函數	function DeleteStateChange() {    	if (XMLHttpReq.readyState == 4) { // 判斷對象狀態        	if (XMLHttpReq.status == 200) { // 信息已經成功返回，開始處理信息	            deleteArticleList();            } else { //頁面不正常                window.alert("您所請求的頁面有異常。");            }        }	}	function deleteArticleList() {		deleteID = XMLHttpReq.responseXML.getElementsByTagName("id")[0].firstChild.nodeValue;		if (deleteID!=null){		    var rowToDelete = document.getElementById(deleteID);		    var articleList = document.getElementById("articleList");		    articleList.removeChild(rowToDelete);		}	}	// 頁面裝入請求函數    function loadRequest() {        var url = "adminArticle?action=load";	    createXMLHttpRequest();	    XMLHttpReq.onreadystatechange = loadResponse;	    XMLHttpReq.open("GET", url, true);	    XMLHttpReq.send(null);	}	// 頁面裝入處理函數    function loadResponse() {    	if (XMLHttpReq.readyState == 4) { // 判斷對象狀態        	if (XMLHttpReq.status == 200) { // 信息已經成功返回，開始處理信息	            loadSortList();	            loadArticleList();            } else { //頁面不正常                window.alert("您所請求的頁面有異常。");            }        }    }	// 裝入分類列表函數	function loadSortList() {        var option = document.createElement("option");        option.appendChild(document.createTextNode("全部文章"));	    option.setAttribute("value", "０");        sort.appendChild(option);		var xmlDoc =XMLHttpReq.responseXML;    	var sorts = xmlDoc.getElementsByTagName("sort");    	var currentSort = null;    	for(var i = 0; i < sorts.length; i++) {        	currentSort = sorts[i];        	var id =currentSort.getElementsByTagName("id")[0].firstChild.nodeValue;        	var name =currentSort.getElementsByTagName("name")[0].firstChild.nodeValue;	        option = document.createElement("option");	        option.appendChild(document.createTextNode(name));		    option.setAttribute("value", id);	        sort.appendChild(option);		}	}	// 裝入文章函數	function loadArticleList() {		var xmlDoc =XMLHttpReq.responseXML;    	var articles = xmlDoc.getElementsByTagName("article");    	var currentArticle = null;    	for(var i = 0; i < articles.length; i++) {        	currentArticle = articles[i];        	var id =currentArticle.getElementsByTagName("id")[0].firstChild.nodeValue;        	var name =currentArticle.getElementsByTagName("name")[0].firstChild.nodeValue;        	var time =currentArticle.getElementsByTagName("time")[0].firstChild.nodeValue;			addOneArticle(id,name,time);	    		}	}	// 插入一行函數	function addOneArticle(id,name,time) {	    var row = document.createElement("tr");	    row.setAttribute("id", id);	    var cell = document.createElement("td");	    cell.appendChild(document.createTextNode(name));	    row.appendChild(cell);	    	    cell = document.createElement("td");	    cell.appendChild(document.createTextNode(time));	    row.appendChild(cell);	    	    var deleteButton = document.createElement("input");	    deleteButton.setAttribute("type", "button");	    deleteButton.setAttribute("value", "刪除");	    deleteButton.onclick = function () { deleteArticle(id); };	    cell = document.createElement("td");	    cell.appendChild(deleteButton);	    row.appendChild(cell);	    	    document.getElementById("articleList").appendChild(row);	}	function clearArticleList() {	    var article = document.getElementById("articleList");	    while(article.childNodes.length > 0) {	        article.removeChild(article.childNodes[0]);	    }	}