// Javascript Dynamic Menus

// Version 1

// (c) Shopcreator Developments Ltd



// Common

/*

var menuIDName = "SDLMenuID" ;

var menuImgIDName = "SDLMenuImgID" ;



var menuImageExpand = new Image();

var menuImageClose = new Image();



menuImageExpand.src = 'expand.gif';

menuImageClose.src = 'close.gif';

*/



// Close all menus items

function SDLMenuCloseAll() {

	var i = 0;

	SDLMenuSetCookie(0);

	

	while (true) {

		i++;

		var menuElement = document.getElementById(menuIDName+i) ;

		if (menuElement != null) 

		{	

			menuElement.style.display = "none";

	

			var imgElement = document.getElementById(menuImgIDName+i) ;

			if (imgElement != null)

				imgElement.src = menuImageExpand.src;

	

		}	



		if (i > menuTotal)

			break;	

	}

}



// Toggle Selected Menu

function SDLMenuToggle(menuNo) {

	// Toggle Menus (show/hide)



	var menuElement = document.getElementById(menuIDName + menuNo) ;



	if (menuElement == null)

		return;



	if (menuElement.style.display == null)

		return;



	var imgElement = document.getElementById(menuImgIDName + menuNo) ;



	if (menuElement.style.display == "none")

	{

		menuElement.style.display = "" ;

	



		if (imgElement != null)

			imgElement.src = menuImageClose.src;



	}

	else

	{

		menuElement.style.display = "none" ;

		if (imgElement != null)

			imgElement.src = menuImageExpand.src;

	}

}





// Toggle Selected Menu, close all others

function SDLMenuToggleOne(menuNo) {

	// Toggle Menus (show/hide)



	var menuElement = document.getElementById(menuIDName + menuNo) ;



	if (menuElement == null)

		return;



	if (menuElement.style.display == null)

		return;



	var imgElement = document.getElementById(menuImgIDName + menuNo) ;



	if (menuElement.style.display == "none")

	{	// If item closed/hidden close all others then

		// open it.

		SDLMenuCloseAll();

		menuElement.style.display = "" ;

		

		SDLMenuSetCookie(menuNo);

	

		if (imgElement != null)

			imgElement.src = menuImageClose.src;



		

	}

	else

	{

		menuElement.style.display = "none" ;

		SDLMenuSetCookie(0);



		if (imgElement != null)

			imgElement.src = menuImageExpand.src;



		

	}

}





// Wrapper  to allow action changes

function SDLMenuClick(menuNo) {

	SDLMenuToggleOne(menuNo) ;

	

}



// Set Cookie

function SDLMenuSetCookie(cookieValue) {

	document.cookie = "SDLmenu=" + escape(cookieValue);

}



// Get Cookie

function SDLMenuGetCookie() {

	var allCookies = document.cookie;

	var pos = allCookies.indexOf("SDLmenu=");

	

	if (pos != -1) {

		var start = pos + 8;

		var end = allCookies.indexOf(";", start);

		

		if (end == -1)

			end = allCookies.length;

		

		var value = allCookies.substring (start, end);

		value = unescape (value);	

	

		return value;

	

	}



}



// Wrapper to allow load changes

function SDLMenuOnLoad() {

	// Restore the previous viewed menu

	var menuNo = SDLMenuGetCookie();

	if (menuNo != null)

		SDLMenuToggleOne(menuNo);

	else

		SDLMenuToggleOne("1");

}