$(document).ready(function(){
	navHoverElements();	
	preloadImages();
});

function preloadImages(){
	if(document.images){
		var imgs = new Array();	
		imgs[0] = getImage("/library/media/gui/nav-left.png");
		imgs[1] = getImage("/library/media/gui/nav-left-hover.png");
		imgs[2] = getImage("/library/media/gui/btn/associates.gif");
		imgs[3] = getImage("/library/media/gui/btn/associates-hover.gif");
		imgs[4] = getImage("/library/media/gui/btn/calendar.gif");
		imgs[5] = getImage("/library/media/gui/btn/calendar-hover.gif");
		imgs[6] = getImage("/library/media/gui/btn/directory.gif");
		imgs[7] = getImage("/library/media/gui/btn/directory-hover.gif");
		imgs[8] = getImage("/library/media/gui/btn/events.gif");
		imgs[9] = getImage("/library/media/gui/btn/events-hover.gif");
		imgs[10] = getImage("/library/media/gui/btn/jobs.gif");
		imgs[11] = getImage("/library/media/gui/btn/jobs-hover.gif");
		imgs[12] = getImage("/library/media/gui/btn/leads.gif");
		imgs[13] = getImage("/library/media/gui/btn/leads-hover.gif");
		imgs[14] = getImage("/library/media/gui/btn/loan-programs.gif");
		imgs[15] = getImage("/library/media/gui/btn/loan-programs-hover.gif");
		imgs[16] = getImage("/library/media/gui/btn/training.gif");
		imgs[17] = getImage("/library/media/gui/btn/training-hover.gif");
		imgs[18] = getImage("/library/media/thumbs/event-calendar-view.jpg");
		imgs[19] = getImage("/library/media/thumbs/event-calendar-view-hover.jpg");
		imgs[20] = getImage("/library/media/thumbs/lender-roster-view.jpg");
		imgs[21] = getImage("/library/media/thumbs/lender-roster-view-hover.jpg");
		imgs[22] = getImage("/library/media/thumbs/roster-view.jpg");
		imgs[23] = getImage("/library/media/thumbs/roster-view-hover.jpg");	
	}	
}

function navHoverElements(){
	$("#nav-inner-container li").hover(
		function(){ 
					$(this).removeClass("nav-hide");
					$(this).addClass("nav-hover");
					if($(this).children("a").children("img").length == 1){
						$(this).children("a").children("img").attr(
							"src",$(this).children("a").children("img").attr("src").replace(".gif","-hover.gif"));
					}
		},
		function(){ 
					$(this).removeClass("nav-hover");
					$(this).addClass("nav-hide");
					if($(this).children("a").children("img").length == 1){
						$(this).children("a").children("img").attr(
							"src",$(this).children("a").children("img").attr("src").replace("-hover.gif",".gif")); 
					}
		}
	);
	
	$("#nav-inner-container li.first").hover(
		function(){ $("#nav-left-img").attr("src",$("#nav-left-img").attr("src").replace(".png","-hover.png")); },
		function(){ $("#nav-left-img").attr("src",$("#nav-left-img").attr("src").replace("-hover.png",".png")); }
	);
	
}

function getImage(src){
	var img = new Image();
	img.src = src;
	return img;
}