var iLoop;
var menubuttonlight = new Array();
var menubuttondark = new Array();

for (iLoop = 0; iLoop <= 7; iLoop++)
{
    menubuttondark[iLoop] = new Image();
    menubuttonlight[iLoop] = new Image();
}

menubuttonlight[0].src = "images/menu_home_light.gif";
menubuttonlight[1].src = "images/menu_history_light.gif";
menubuttonlight[2].src = "images/menu_instructors_light.gif";
menubuttonlight[3].src = "images/menu_training_light.gif";
menubuttonlight[4].src = "images/menu_calendar_light.gif";
menubuttonlight[5].src = "images/menu_gallery_light.gif";
menubuttonlight[6].src = "images/menu_contactus_light.gif";
menubuttonlight[7].src = "images/menu_links_light.gif";

menubuttondark[0].src = "images/menu_home_dark.gif";
menubuttondark[1].src = "images/menu_history_dark.gif";
menubuttondark[2].src = "images/menu_instructors_dark.gif";
menubuttondark[3].src = "images/menu_training_dark.gif";
menubuttondark[4].src = "images/menu_calendar_dark.gif";
menubuttondark[5].src = "images/menu_gallery_dark.gif";
menubuttondark[6].src = "images/menu_contactus_dark.gif";
menubuttondark[7].src = "images/menu_links_dark.gif";


function menu_rollover(ImageNumber, Op)
{
    if (!document.images)
	return;

    if (Op == 1)
    {
	var ImageName = "menu" + ImageNumber;
	document.images[ImageName].src = menubuttondark[ImageNumber].src
    }
    else
    {
	var ImageName = "menu" + ImageNumber;
	document.images[ImageName].src = menubuttonlight[ImageNumber].src
    }
}


function menu_reposition()
{
    var offSet;

    if (navigator.appName.toUpperCase().match(/MICROSOFT INTERNET EXPLORER/) != null)
        offSet = ((document.body.scrollWidth - 700) / 2);
    else
        offSet = ((window.innerWidth - 700) / 2);

    document.getElementById("subgallery").style.left = (498 + offSet + "pX");
}


function getArgs()
{
    var args = new Object();
    var query = location.search.substring(1);
    var pairs = query.split("&");
    
    for(var i = 0; i < pairs.length; i++)
    {
        var pos = pairs[i].indexOf('=');
        if (pos == -1) continue;
        var argname = pairs[i].substring(0,pos);
        var value = pairs[i].substring(pos+1);
        args[argname] = unescape(value);
    }
    return args;
}