//** Tab Content script v2.0- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
//** Updated Oct 7th, 07 to version 2.0. Contains numerous improvements:
// -Added Auto Mode: Script auto rotates the tabs based on an interval, until a tab is explicitly selected
// -Ability to expand/contract arbitrary DIVs on the page as the tabbed content is expanded/ contracted
// -Ability to dynamically select a tab either based on its position within its peers, or its ID attribute (give the target tab one 1st)
// -Ability to set where the CSS classname "selected" get assigned- either to the target tab's link ("A"), or its parent container
////NO NEED TO EDIT BELOW////////////////////////
function ddtabcontent(tabinterfaceid){
this.tabinterfaceid=tabinterfaceid //ID of Tab Menu main container
this.tabs=document.getElementById(tabinterfaceid).getElementsByTagName("a") //Get all tab links within container
this.enabletabpersistence=true
this.hottabspositions=[] //Array to store position of tabs that have a "rel" attr defined, relative to all tab links, within container
this.subcontentids=[] //Array to store ids of the sub contents ("rel" attr values)
this.revcontentids=[] //Array to store ids of arbitrary contents to expand/contact as well ("rev" attr values)
this.selectedClassTarget="link" //keyword to indicate which target element to assign "selected" CSS class ("linkparent" or "link")
}
ddtabcontent.getCookie=function(Name){
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return ""
}
ddtabcontent.setCookie=function(name, value){
document.cookie = name+"="+value+";path=/" //cookie value is domain wide (path=/)
}
ddtabcontent.prototype={
expandit:function(tabid_or_position){ //PUBLIC function to select a tab either by its ID or position(int) within its peers
this.cancelautorun() //stop auto cycling of tabs (if running)
var tabref=""
try{
if (typeof tabid_or_position=="string" && document.getElementById(tabid_or_position).getAttribute("rel")) //if specified tab contains "rel" attr
tabref=document.getElementById(tabid_or_position)
else if (parseInt(tabid_or_position)!=NaN && this.tabs[tabid_or_position].getAttribute("rel")) //if specified tab contains "rel" attr
tabref=this.tabs[tabid_or_position]
}
catch(err){alert("Invalid Tab ID or position entered!")}
if (tabref!="") //if a valid tab is found based on function parameter
this.expandtab(tabref) //expand this tab
},
setpersist:function(bool){ //PUBLIC function to toggle persistence feature
this.enabletabpersistence=bool
},
setselectedClassTarget:function(objstr){ //PUBLIC function to set which target element to assign "selected" CSS class ("linkparent" or "link")
this.selectedClassTarget=objstr || "link"
},
getselectedClassTarget:function(tabref){ //Returns target element to assign "selected" CSS class to
return (this.selectedClassTarget==("linkparent".toLowerCase()))? tabref.parentNode : tabref
},
expandtab:function(tabref){
var subcontentid=tabref.getAttribute("rel") //Get id of subcontent to expand
//Get "rev" attr as a string of IDs in the format ",john,george,trey,etc," to easily search through
var associatedrevids=(tabref.getAttribute("rev"))? ","+tabref.getAttribute("rev").replace(/\s+/, "")+"," : ""
this.expandsubcontent(subcontentid)
this.expandrevcontent(associatedrevids)
for (var i=0; i<this.tabs.length; i++){ //Loop through all tabs, and assign only the selected tab the CSS class "selected"
this.getselectedClassTarget(this.tabs[i]).className=(this.tabs[i].getAttribute("rel")==subcontentid)? "selected" : ""
}
if (this.enabletabpersistence) //if persistence enabled, save selected tab position(int) relative to its peers
ddtabcontent.setCookie(this.tabinterfaceid, tabref.tabposition)
},
expandsubcontent:function(subcontentid){
for (var i=0; i<this.subcontentids.length; i++){
var subcontent=document.getElementById(this.subcontentids[i]) //cache current subcontent obj (in for loop)
subcontent.style.display=(subcontent.id==subcontentid)? "block" : "none" //"show" or hide sub content based on matching id attr value
}
},
expandrevcontent:function(associatedrevids){
var allrevids=this.revcontentids
for (var i=0; i<allrevids.length; i++){ //Loop through rev attributes for all tabs in this tab interface
//if any values stored within associatedrevids matches one within allrevids, expand that DIV, otherwise, contract it
document.getElementById(allrevids[i]).style.display=(associatedrevids.indexOf(","+allrevids[i]+",")!=-1)? "block" : "none"
}
},
autorun:function(){ //function to auto cycle through and select tabs based on a set interval
var currentTabIndex=this.automode_currentTabIndex //index within this.hottabspositions to begin
var hottabspositions=this.hottabspositions //Array containing position numbers of "hot" tabs (those with a "rel" attr)
this.expandtab(this.tabs[hottabspositions[currentTabIndex]])
this.automode_currentTabIndex=(currentTabIndex<hottabspositions.length-1)? currentTabIndex+1 : 0 //increment currentTabIndex
},
cancelautorun:function(){
if (typeof this.autoruntimer!="undefined")
clearInterval(this.autoruntimer)
},
init:function(automodeperiod){
var persistedtab=ddtabcontent.getCookie(this.tabinterfaceid) //get position of persisted tab (applicable if persistence is enabled)
var persisterror=true //Bool variable to check whether persisted tab position is valid (can become invalid if user has modified tab structure)
this.automodeperiod=automodeperiod || 0
for (var i=0; i<this.tabs.length; i++){
this.tabs[i].tabposition=i //remember position of tab relative to its peers
if (this.tabs[i].getAttribute("rel")){
var tabinstance=this
this.hottabspositions[this.hottabspositions.length]=i //store position of "hot" tab ("rel" attr defined) relative to its peers
this.subcontentids[this.subcontentids.length]=this.tabs[i].getAttribute("rel") //store id of sub content ("rel" attr value)
this.tabs[i].onclick=function(){
tabinstance.expandtab(this)
tabinstance.cancelautorun() //stop auto cycling of tabs (if running)
return false
}
if (this.tabs[i].getAttribute("rev")){ //if "rev" attr defined, store each value within "rev" as an array element
this.revcontentids=this.revcontentids.concat(this.tabs[i].getAttribute("rev").split(/\s*,\s*/))
}
if (this.enabletabpersistence && parseInt(persistedtab)==i || !this.enabletabpersistence && this.getselectedClassTarget(this.tabs[i]).className=="selected"){
this.expandtab(this.tabs[i]) //expand current tab if it's the persisted tab, or if persist=off, carries the "selected" CSS class
persisterror=false //Persisted tab (if applicable) was found, so set "persisterror" to false
//If currently selected tab's index(i) is greater than 0, this means its not the 1st tab, so set the tab to begin in automode to 1st tab:
this.automode_currentTabIndex=(i>0)? 0 : 1
}
}
} //END for loop
if (persisterror) //if an error has occured while trying to retrieve persisted tab (based on its position within its peers)
this.expandtab(this.tabs[this.hottabspositions[0]]) //Just select first tab that contains a "rel" attr
if (parseInt(this.automodeperiod)>500 && this.hottabspositions.length>1){
this.automode_currentTabIndex=this.automode_currentTabIndex || 0
this.autoruntimer=setInterval(function(){tabinstance.autorun()}, this.automodeperiod)
}
} //END int() function
} //END Prototype assignment
