增加Ajax相關的js方法，這些方法大部分是基於prototype (一個很好的 JavaScript Framework )類庫來寫的。
1. loadAjaxElement,loadAjaxData,sendAjaxElement,sendAjaxData這四方法都是真接Ajax操作的方法；
2. parseXML,importXML,getTextNodeValue這三個方法是對於Ajax返回結果中的xml資料的處理；如果返回結果非標準xml文檔的話，可以通過parseXML來處理，產生XMLDocument對象；
3.getParams方法是用來返回當前頁面的url參數值的；
4.showLoading,hideLoading這兩個方法用來顯示在頁面載入過程中提示資訊；
//Ajax功能;
function loadAjaxElement(e,u,p,f,l){
if(arguments.length < 3){
return ;
}
var o = $(e);
o.innerHTML = l;
if(typeof p != 'string'){
p = $H(p).toQueryString();
}
new Ajax.Updater( {success: e},u,{method: 'get', parameters: p, onFailure: f});
}
function loadAjaxData(u,p,s,f){
if(arguments.length < 3){
return ;
}
if(typeof p != 'string'){
p = $H(p).toQueryString();
}
new Ajax.Request(
u,{method: 'get', parameters: p, onSuccess:s,onFailure: f});
}
function sendAjaxElement(e,u,p,f,l){
if(arguments.length < 3){
return ;
}
var o = $(e);
o.innerHTML = l;
if(typeof p != 'string'){
p = $H(p).toQueryString();
}
new Ajax.Updater(
{success: e},
u,
{method: 'post', parameters: p, onFailure: f});
}
function sendAjaxData(u,p,s,f){
if(arguments.length < 3){
return ;
}
if(typeof p != 'string'){
p = $H(p).toQueryString();
}
new Ajax.Request(
u,
{method: 'post', parameters: p, onSuccess:s,onFailure: f});
}
function parseXML(s){
try{
var domParser = new DOMParser();
var o = domParser.parseFromString(s,
'application/xml');
return o.documentElement;
}catch(e){
try{
var o = getIEXmlAX();
o.loadXML(s);
return o.documentElement;
}catch(e){
return null;
}
}
}
function importXML(u,s,f){
new Ajax.Request(
u,
{method: 'get', parameters: null, onSuccess:function(v){s(v.responseXML.documentElement);},onFailure: f});
}
function getIEXmlAX(){
var i,activeXarr;
activeXarr = new Array(
"MSXML4.DOMDocument",
"MSXML3.DOMDocument",
"MSXML2.DOMDocument",
"MSXML.DOMDocument",
"Microsoft.XmlDom"
);
for(i=0; i
try
{
var o = new ActiveXObject(activeXarr[i]);
return o;
}
catch(objException){}
}
return false;
}
function getTextNodeValue(d,n,e){
if(typeof e == 'undefined'){
e = false;
}
var a = d.getElementsByTagName(n);
if(a==null){
return null;
}
if(a.length==1){
return (e)?unescape(a[0].firstChild.nodeValue):a[0].firstChild.nodeValue;
}else{
var ra = new Array();
for(var i=0;i
ra[i] = (e)?unescape(a[i].firstChild.nodeValue):a[i].firstChild.nodeValue;
}
return ra;
}
}
function getParams(){
var o = new Object()
var a=document.location.search.substr(1).split('&');
for (i=0;i
try{
var aa=a[i].split('=');
var n=aa[0];
var v=aa[1];
o[n]=trim(v);
}catch(e){
}
}
return o;
}
function showLoading(c,b,a){
switch(arguments.length){
case 2:
a = 0.9;
case 1:
b = "#000000";
case 0:
c = "#FFFFFF";
break;
}
var d = document;
if($("loading_div") == null){
var s = ' ';
d.write(s);
}
var o = $("loading_div");
if(o.style.MozOpacity){
o.style.MozOpacity = a;
}else if(o.style.opacity){
o.style.opacity = a;
}else{
a = a * 100;
o.style.filter='Alpha(Opacity='+a+')';
}
} function hideLoading(){
$("loading_div").style.display = 'none';
} |
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