主要js

文件:

ajax选项卡.rar

大小:

89KB

下载:代码:

var bustcachevar=1 //bust potential caching of external pages after initial request? (1=yes, 0=no)

var loadstatustext="

Requesting content..."

NO NEED TO EDIT BELOW

var loadedobjects=""

var defaultcontentarray=new Object()

var bustcacheparameter=""

function ajaxpage(url, containerid, targetobj){

var page_request = false

if (window.XMLHttpRequest) // if Mozilla, Safari etc

page_request = new XMLHttpRequest()

else if (window.ActiveXObject){ // if IE

try {

page_request = new ActiveXObject("Msxml2.XMLHTTP")

}

catch (e){

try{

page_request = new ActiveXObject("Microsoft.XMLHTTP")

}

catch (e){}

}

}

else

return false

var ullist=targetobj.parentNode.parentNode.getElementsByTagName("li")

for (var i=0; iullist[i].className=""  //deselect all tabs

targetobj.parentNode.className="selected"  //highlight currently clicked on tab

if (url.indexOf("#default")!=-1){ //if simply show default content within container (verus fetch it via ajax)

document.getElementById(containerid).innerHTML=defaultcontentarray[containerid]

return

}

document.getElementById(containerid).innerHTML=loadstatustext

page_request.onreadystatechange=function(){

loadpage(page_request, containerid)

}

if (bustcachevar) //if bust caching of external page

bustcacheparameter=(url.indexOf("?")!=-1)? "&"+new Date().getTime() : "?"+new Date().getTime()

page_request.open('GET', url+bustcacheparameter, true)

page_request.send(null)

}

function loadpage(page_request, containerid){

if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))

document.getElementById(containerid).innerHTML=page_request.responseText

}

function loadobjs(revattribute){

if (revattribute!=null && revattribute!=""){ //if "rev" attribute is defined (load external .js or .css files)

var objectlist=revattribute.split(/\s*,\s*/) //split the files and store as array

for (var i=0; ivar file=objectlist[i]

var fileref=""

if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding

if (file.indexOf(".js")!=-1){ //If object is a js file

fileref=document.createElement('script')

fileref.setAttribute("type","text/javascript");

fileref.setAttribute("src", file);

}

else if (file.indexOf(".css")!=-1){ //If object is a css file

fileref=document.createElement("link")

fileref.setAttribute("rel", "stylesheet");

fileref.setAttribute("type", "text/css");

fileref.setAttribute("href", file);

}

}

if (fileref!=""){

document.getElementsByTagName("head").item(0).appendChild(fileref)

loadedobjects+=file+" " //Remember this object as being already added to page

}

}

}

}

function expandtab(tabcontentid, tabnumber){ //interface for selecting a tab (plus expand corresponding content)

var thetab=document.getElementById(tabcontentid).getElementsByTagName("a")[tabnumber]

if (thetab.getAttribute("rel")){

ajaxpage(thetab.getAttribute("href"), thetab.getAttribute("rel"), thetab)

loadobjs(thetab.getAttribute("rev"))

}

}

function savedefaultcontent(contentid){// save default ajax tab content

if (typeof defaultcontentarray[contentid]=="undefined") //if default content hasn't already been saved

defaultcontentarray[contentid]=document.getElementById(contentid).innerHTML

}

function startajaxtabs(){

for (var i=0; ivar ulobj=document.getElementById(arguments[i])

var ulist=ulobj.getElementsByTagName("li") //array containing the LI elements within UL

for (var x=0; xvar ulistlink=ulist[x].getElementsByTagName("a")[0]

if (ulistlink.getAttribute("rel")){

var modifiedurl=ulistlink.getAttribute("href").replace(/^http:\/\/[^\/]+\//i, "")

ulistlink.setAttribute("href", modifiedurl) //replace URL's root domain with dynamic root domain, for ajax security sake

savedefaultcontent(ulistlink.getAttribute("rel")) //save default ajax tab content

ulistlink.οnclick=function(){

ajaxpage(this.getAttribute("href"), this.getAttribute("rel"), this)

loadobjs(this.getAttribute("rev"))

return false

}

if (ulist[x].className=="selected"){

ajaxpage(ulistlink.getAttribute("href"), ulistlink.getAttribute("rel"), ulistlink) //auto load currenly selected tab content

loadobjs(ulistlink.getAttribute("rev")) //auto load any accompanying .js and .css files

}

}

}

}

}