var overbuttons = new Array('images/homeover.gif','images/aboutover.gif','images/wineover.gif','images/purchaseover.gif','images/clubover.gif','images/visitover.gif');
var offbuttons = new Array('images/home.gif','images/about.gif','images/wine.gif','images/purchase.gif','images/club.gif','images/visit.gif');
var aboutmenu = new Array('images/aboutmenutop.gif','images/aboutmenuhist.gif','images/aboutmhistov.gif','images/aboutmenuresu.gif','images/aboutmresuov.gif','images/aboutmenufrie.gif','images/aboutmfrieov.gif','images/aboutmenubott.gif');
var winemenu = new Array('images/winemenutop.gif','images/winemenumake.gif','images/winemmakeov.gif','images/winemenugrap.gif','images/winemgrapov.gif','images/winemenucomb.gif','images/winemcombov.gif','images/winemenufaqs.gif','images/winemfaqsov.gif','images/winemenubott.gif');

var otherimages = new Array('images/2bottles.gif');

var the_timeout;
var visible;
var hidden;
var themenu;
var lastmenu=0;
var iframe1;
var iframe2;
var thepic;

function browsercheck()
{
	if (document.layers)
	{
  		visible = 'show';
  		hidden = 'hide';
	}
	else if (document.all)
	{
  		visible = 'visible';
  		hidden = 'hidden';
	}

}

function doPreload()
{
   preloadImages(overbuttons);
   preloadImages(aboutmenu);
   preloadImages(winemenu);
   preloadImages(otherimages);
}

function preloadImages(the_images_array)
{
   for(var loop = 0; loop < the_images_array.length; loop++)
   {
	var an_image = new Image();
	an_image.src = the_images_array[loop];
   }
}

function changeimage(whichrollover, onoff)
{
	var imagename = "button" + whichrollover;
	if (onoff == "on")
	{
		document[imagename].src = overbuttons[whichrollover];
	}
	else
	{
		document[imagename].src = offbuttons[whichrollover];
	}
}

function changemenu(whichmenu, whichitem, offon)
{
	var imagename = "menu" + whichmenu + whichitem;
	var temp = 0;
	if (whichmenu == "about")
	{
		if (offon == "on")
		{
			document[imagename].src = aboutmenu[whichitem + 1];
		}
		else
		{
			document[imagename].src = aboutmenu[whichitem];
		}
	}
	else if (whichmenu == "wine")
	{
		if (offon == "on")
		{
			document[imagename].src = winemenu[whichitem + 1];
		}
		else
		{
			document[imagename].src = winemenu[whichitem];
		}
	}
}

function reveal(menu)
{
	if(lastmenu != '')
	{
		lastmenu.visibility = hidden;
		clearTimeout(the_timeout);
	}
	if (document.layers) 
	{
    		iframe1 = document.layers['mainpara'];
		iframe2 = document.layers['bottompara'];
		themenu = document.layers[menu];
		thepic = document.layers['twobottles'];
  	}
	else if (document.all)
	{
		iframe1 = document.all('mainpara').style;
    		iframe2 = document.all('bottompara').style;
		themenu = document.all(menu).style;
		thepic = document.all('twobottles').style;
  	}
  
	iframe1.visibility = hidden;
     	iframe2.visibility = hidden;
	themenu.visibility = visible;
	thepic.visibility = visible;
	lastmenu=themenu;
}

function hide(menu)
{
	if (document.layers)
	{
    		themenu = document.layers[menu];
		iframe1 = document.layers['mainpara'];
		iframe2 = document.layers['bottompara'];
		thepic = document.layers['twobottles'];

  	}
	else if (document.all) 
	{
    		themenu = document.all(menu).style;
		iframe1 = document.all('mainpara').style;
		iframe2 = document.all('bottompara').style;
		thepic = document.all('twobottles').style;
  	}
	
	the_timeout = setTimeout("themenu.visibility = hidden;iframe1.visibility = visible;iframe2.visibility = visible;thepic.visibility = hidden;", 500);
}

browsercheck();