/***********************************************
* Dolphin Tabs Menu- by JavaScript Kit (www.javascriptkit.com)
* This notice must stay intact for usage
* Visit JavaScript Kit at http://www.javascriptkit.com/ for this script and 100s more
***********************************************/
var _current = 1;

var dolphintabs={
	subcontainers:[], last_accessed_tab:null,

	revealsubmenu:function(curtabref){
	this.hideallsubs()
	if (this.last_accessed_tab!=null)
		this.last_accessed_tab.className=""
	if (curtabref.getAttribute("rel")) //If there's a sub menu defined for this tab item, show it
	document.getElementById(curtabref.getAttribute("rel")).style.display="block"
	curtabref.className="current"
	this.last_accessed_tab=curtabref
	},

	hideallsubs:function(){
	for (var i=0; i<this.subcontainers.length; i++)
		document.getElementById(this.subcontainers[i]).style.display="none"
	},
	
	
	getNextMenu:function(curtabref,_selected){
	this.hideallsubs()
	if (this.last_accessed_tab!=null)
		this.last_accessed_tab.className=""
	if (curtabref) //If there's a sub menu defined for this tab item, show it
	curtabref.style.display="block"
	_selected.className="current"
	this.last_accessed_tab=_selected
	},

	hideallsubs:function(){
	for (var i=0; i<this.subcontainers.length; i++)
		document.getElementById(this.subcontainers[i]).style.display="none"
	},


	init:function(menuId, selectedIndex){
	var tabItems=document.getElementById(menuId).getElementsByTagName("a")
		for (var i=0; i<tabItems.length; i++){
			if (tabItems[i].getAttribute("rel"))
				this.subcontainers[this.subcontainers.length]=tabItems[i].getAttribute("rel") //store id of submenu div of tab menu item
			if (i==selectedIndex){ //if this tab item should be selected by default
				tabItems[i].className="current"
				this.revealsubmenu(tabItems[i])
			}
		tabItems[i].onclick=function(){
		dolphintabs.revealsubmenu(this)
		}
		} //END FOR LOOP
	}
}

function getNext(){
	var _tag = document.getElementById("dolphinnav");
	var _childs = _tag.getElementsByTagName("a")

	_current += 1;
	//_current = _current % _childs.length-2;
	_current = (_current > (_childs.length-3)) ? 0 : _current;
	var _currentElement = document.getElementById(_childs[_current].rel);
	dolphintabs.getNextMenu(_currentElement,_childs[_current]);

}

function getPrevious(){
	var _tag = document.getElementById("dolphinnav");
	var _childs = _tag.getElementsByTagName("a");

	//alert(_childs.length);
	_current -= 1;
	_current = (_current < 0) ? _childs.length-3 : _current;
	var _currentElement = document.getElementById(_childs[_current].rel);
	dolphintabs.getNextMenu(_currentElement,_childs[_current]);
}