var Selected;
var PrevSelected;
var TabArray;
var FrameArray;
var SourceDocArray;

Selected=0;

window.onload = function()
{
	SourceDocArray = new Array(
		"doc/home.aspx",
		"doc/kenairiver.aspx",
		"doc/pacificsalmon.aspx",
		"doc/gettinghere.aspx",
		"doc/runtiming.aspx",
		"doc/FAQs.aspx",
		"doc/links.aspx",
		"doc/copyright.aspx");

	FrameArray = new Array(
		top.Main.document.getElementById("ifrm0"),
		top.Main.document.getElementById("ifrm1"),
		top.Main.document.getElementById("ifrm2"),
		top.Main.document.getElementById("ifrm3"),
		top.Main.document.getElementById("ifrm4"),
		top.Main.document.getElementById("ifrm5"),
		top.Main.document.getElementById("ifrm6"),
		top.Main.document.getElementById("ifrm7"));
	
	TabArray = new Array(
		top.Header.document.getElementById("tab0"),
		top.Header.document.getElementById("tab1"),
		top.Header.document.getElementById("tab2"),
		top.Header.document.getElementById("tab3"),
		top.Header.document.getElementById("tab4"),
		top.Header.document.getElementById("tab5"),
		top.Header.document.getElementById("tab6"),
		top.Header.document.getElementById("tab7"));
	
	PrevSelected = 0;
	
	for (i = 0; i < 8; i++)
	{
		FrameArray[i].style.display = "none";
		FrameArray[i]._src = SourceDocArray[i];
		TabArray[i]._unselected = "/images/tabs/tab" + i + "0.gif";
		TabArray[i]._selected = "/images/tabs/tab" + i + "1.gif";
		TabArray[i]._hover = "/images/tabs/tab" + i + "2.gif";
		TabArray[i].src = TabArray[i]._selected;
		TabArray[i].src = TabArray[i]._hover;
		TabArray[i].src = TabArray[i]._unselected;
		TabArray[i]._number = i;
		TabArray[i].onclick = TabClick;
		TabArray[i].onmouseout = MouseOut;
		TabArray[i].onmouseover = MouseOver;
		TabArray[i].style.cursor = "default";
		TabArray[i].hideFocus = true;
	}
	
	_TabClick("tab0");
	Resize();
	
}

window.onresize = Resize;

function Resize()
{
	var width = top.Header.document.getElementById("Body").clientWidth;
	top.Header.document.getElementById("line_fill").height = 1;
	top.Header.document.getElementById("line_fill").width = width - 645 > 0 ? width - 645 : 0;
	
}

function MouseOut()
{
	if (this._number != Selected)
	{
		this.src = this._unselected;
	}
	
}

function MouseOver()
{
	if (this._number != Selected)
	{
		this.src = this._hover;
	}

}

function TabClick()
{
	_TabClick(this.id);
}

function _TabClick(SelectedStr)
{
	Selected = SelectedStr.substr(3, 1);

	if (FrameArray[Selected].src == "")
	{
		FrameArray[Selected].src = FrameArray[Selected]._src.toString();
	}

	TabArray[PrevSelected].src = TabArray[PrevSelected]._unselected;
	TabArray[Selected].src = TabArray[Selected]._selected;
	
	FrameArray[PrevSelected].style.display = "none";
	FrameArray[Selected].style.display = "block";
	
	PrevSelected = Selected;

}