//DD Tab Menu- Script rewritten April 27th, 07: http://www.dynamicdrive.com
//**Updated Feb 23rd, 08): Adds ability for menu to revert back to default selected tab when mouse moves out of menu
//Only 2 configuration variables below:
var ddtabmenu={
disabletablinks: false, //Disable hyperlinks in 1st level tabs with sub contents (true or false)?
snap2original: [true, 300], //Should tab revert back to default selected when mouse moves out of menu? ([true/false, delay_millisec]
currentpageurl: window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, ""), //get current page url (minus hostname, ie: http://www.dynamicdrive.com/)
definemenu:function(tabid, dselected){
this[tabid+"-menuitems"]=null
this[tabid+"-dselected"]=-1
this.addEvent(window, function(){ddtabmenu.init(tabid, dselected)}, "load")
},
showsubmenu:function(tabid, targetitem){
var menuitems=this[tabid+"-menuitems"]
this.clearrevert2default(tabid)
for (i=0; i<menuitems.length; i++){
menuitems[i].className=""
if (typeof menuitems[i].hasSubContent!="undefined")
document.getElementById(menuitems[i].getAttribute("rel")).style.display="none"
}
targetitem.className="current"
if (typeof targetitem.hasSubContent!="undefined")
document.getElementById(targetitem.getAttribute("rel")).style.display="block"
},
isSelected:function(menuurl){
var menuurl=menuurl.replace("http://"+menuurl.hostname, "").replace(/^\//, "")
return (ddtabmenu.currentpageurl==menuurl)
},
isContained:function(m, e){
var e=window.event || e
var c=e.relatedTarget || ((e.type=="mouseover")? e.fromElement : e.toElement)
while (c && c!=m)try {c=c.parentNode} catch(e){c=m}
if (c==m)
return true
else
return false
},
revert2default:function(outobj, tabid, e){
if (!ddtabmenu.isContained(outobj, tabid, e)){
window["hidetimer_"+tabid]=setTimeout(function(){
ddtabmenu.showsubmenu(tabid, ddtabmenu[tabid+"-dselected"])
}, ddtabmenu.snap2original[1])
}
},
clearrevert2default:function(tabid){
if (typeof window["hidetimer_"+tabid]!="undefined")
clearTimeout(window["hidetimer_"+tabid])
},
addEvent:function(target, functionref, tasktype){ //assign a function to execute to an event handler (ie: onunload)
var tasktype=(window.addEventListener)? tasktype : "on"+tasktype
if (target.addEventListener)
target.addEventListener(tasktype, functionref, false)
else if (target.attachEvent)
target.attachEvent(tasktype, functionref)
},
init:function(tabid, dselected){
var menuitems=document.getElementById(tabid).getElementsByTagName("a")
this[tabid+"-menuitems"]=menuitems
for (var x=0; x<menuitems.length; x++){
if (menuitems[x].getAttribute("rel")){
this[tabid+"-menuitems"][x].hasSubContent=true
if (ddtabmenu.disabletablinks)
menuitems[x].onclick=function(){return false}
if (ddtabmenu.snap2original[0]==true){
var submenu=document.getElementById(menuitems[x].getAttribute("rel"))
menuitems[x].onmouseout=function(e){ddtabmenu.revert2default(submenu, tabid, e)}
submenu.onmouseover=function(){ddtabmenu.clearrevert2default(tabid)}
submenu.onmouseout=function(e){ddtabmenu.revert2default(this, tabid, e)}
}
}
else //for items without a submenu, add onMouseout effect
menuitems[x].onmouseout=function(e){this.className=""; if (ddtabmenu.snap2original[0]==true) ddtabmenu.revert2default(this, tabid, e)}
menuitems[x].onmouseover=function(){ddtabmenu.showsubmenu(tabid, this)}
if (dselected=="auto" && typeof setalready=="undefined" && this.isSelected(menuitems[x].href)){
ddtabmenu.showsubmenu(tabid, menuitems[x])
this[tabid+"-dselected"]=menuitems[x]
var setalready=true
}
else if (parseInt(dselected)==x){
ddtabmenu.showsubmenu(tabid, menuitems[x])
this[tabid+"-dselected"]=menuitems[x]
}
}
}
}