// JavaScript Document

Event.observe(window, 'load', function(){
var start = new TabMaker('tab');
start.create();
});

var TabMaker = Class.create()
TabMaker.prototype = {
initialize: function(tab) {
this.tabLnegth = gcn(tab).length;
this.tabName = tab;
},
create: function() {
var menu = new TabIndex(this.tabName);
for (var i = 0; i < this.tabLnegth; i++) {
menu.appendTab(new Tab('Tab' + i, (i==0)));
}
menu.setTab();
}
}

var Tab = Class.create();
Tab.prototype = {
initialize: function(name, open) {
this.name = name;
this.page = name + 'Box';
this.open = open;
},
styleTab: function() {
if (this.open)
this.setStyle('visible', '', 'open');
else
this.setStyle('hidden', 'absolute', 'close');
this.open = false;
},
setStyle: function(visibility, position, className){
var page = $(this.page).style;
var name = $(this.name);
page.visibility = visibility;
page.position = position;
name.className = className;
}
}

var TabIndex = Class.create();
TabIndex.prototype = {
initialize : function(tab) {
this.last = 0;
this.tabs = new Array();
this.tabName = tab;
},
getTabAt : function(index) {
return this.tabs[index];
},
appendTab : function(tab) {
this.tabs[this.last] = tab;
gcn(this.tabName)[this.last].id = tab.name;
gcn(this.tabName+'Box')[this.last].id = tab.page;
this.last++;
var link = document.createElement('a');
link.innerHTML = $(tab.name).innerHTML;
link.href = 'javascript:void(0);'
$(tab.name).innerHTML = '';
$(tab.name).appendChild(link);
$(tab.name).onclick = function(){
tab.open = true;
this.setTab();
}.bind(this);
},
getLength : function() {
return this.last;
},
each : function(func) {
for (var i = 0; i < this.getLength(); i++) {
func(this.getTabAt(i));
}
},
setTab: function() {
this.each(function(tab) {
tab.styleTab();
});
}
};
function gcn(id){
return document.getElementsByClassName(id);
}