/*=================================================================================================
	This script was created By Giles Papworth. This script is (c) Copyright Giles Papworth 2005
	Should you want to use this script, you must mention somewhere on the website that this
	script was created by Giles Papworth. You must also keep this header in place to use the script
	
=================================================================================================*/

// Variables
var NaviHTML = new String();
var ItemCount = new Number(0);
var IsCreating = false;
var ImageFolder = "Images/";
var ExpandImage = "Expand.jpg";
var ContractImage = "Contract.jpg";
var BackgroundTile = "";


//Methods

function StartExNavi(ItemID,MenuText)
{
	var DownImage = ImageFolder + ContractImage;
	if(IsCreating == true){
		alert("You cannot start a new menu item before ending the current one")
		return false;
	}
	if(MenuText == ""){
		alert("You must enter text for your menu");
		return false;
	}
		
	if(ItemID == ""){
		ItemID = "NaviMenu" + ItemCount;
	}
	ItemCount++;
	IsCreating = true;
	NaviHTML += "<table cellpadding=\"3\" cellspacing=\"0\" class = \"ExplorerNavigationTable\"><tr onclick=\"ExpandNavi(this)\">";
	NaviHTML += "<td align=\"left\" class=\"ExplorerNavigationHeader\" background = \"" + ImageFolder + BackgroundTile + "\">" + MenuText + "</td>";
	NaviHTML += "<td align=\"right\" class=\"ExplorerNavigationHeaderImg\"><img src=\"" + DownImage + "\" align=\"left\"></td>";
	NaviHTML += "</tr><tr><td class = \"ExplorerNavigationBody\" colspan = \"2\">";
}

function AddExNaviContent(ContentHTML)
{
	if(IsCreating == false){
		alert("You must start a menu first");
		return false
	}
	NaviHTML += ContentHTML;
}

function EndExNavi()
{
	if(IsCreating == false){
		alert("You must start a menu before trying to end one");
		return false;
	}
	NaviHTML += "</td></tr></table><br />";
	IsCreating = false;
}

function GenerateExNaviMenu(Owner)
{
	
	if(IsCreating == true){
		alert("You must end the menu before trying to generate it");
		return false;
	}
	
	if(Owner == "" || !Owner){
		document.write(NaviHTML);
	}else{
		document.getElementById(Owner).innerHTML = NaviHTML;
	}
	
	
}

function ExpandNavi(item)
{
	var Parent = item.offsetParent
	var TRMain = Parent.getElementsByTagName("tr").item(1)
	var TBody = TRMain.getElementsByTagName("td").item(0)
	var MainImage = Parent.getElementsByTagName("img").item(0)
	if(TBody.style.display == ""){
		TBody.style.display = "none";
		MainImage.src = ImageFolder + ExpandImage;//"arrdown.gif";
	}else{
		TBody.style.display = "";
		MainImage.src = ImageFolder + ContractImage;//"arrup.gif";
	}
}