// JavaScript Document
$(document).ready(function(){

jQuery.preloadImages = function()
{
  for(var i = 0; i<arguments.length; i++)
  {
    jQuery("<img>").attr("src", arguments[i]);
  }
}
function after_subnav() {
	if (page && page != undefined) {
		$("#" + page).addClass("subnav_selected");	
	}
	 $("#subnav_control").click(function () { 
		if (subnav_visible) {
			subnav_visible = false;
	    	$("#subnav_container").slideUp("fast");
			$("#subnav_control").html("<a href='#'>Show Menu</a>");
		} else {
			subnav_visible = true;
	    	$("#subnav_container").slideDown("fast");
			$("#subnav_control").html("<a href='#'>Hide Menu</a>");
		}
	 });
}
function after_nav() {
	if (current && current != undefined) {
		var newSrc = $("#nav_" + current).attr("src").replace(".jpg","_selected.jpg");
		$("#nav_" + current).attr("src",newSrc);
	}
	$(".rollover").hover(
		function(){
			if($(this).attr("src").indexOf("_selected") == -1) {
				var newSrc = $(this).attr("src").replace(".jpg","_over.jpg#hover");
				$(this).attr("src",newSrc);
			}
		},
		function(){
			if($(this).attr("src").indexOf("_over.jpg#hover") != -1) {
				var oldSrc = $(this).attr("src").replace("_over.jpg#hover",".jpg");
				$(this).attr("src",oldSrc);
			}
	}
)	;
}


$.preloadImages("../images/nav/nav_books_over.jpg", "../images/nav/nav_washington_over.jpg","../images/nav/nav_bio_over.jpg","../images/nav/nav_film_over.jpg","../images/nav/nav_wire_over.jpg","../images/nav/nav_music_over.jpg","../images/nav/nav_cars_over.jpg","../images/nav/nav_etc_over.jpg");

$("#left_col").load("../navigation.txt", null, after_nav);
if (subnav && subnav != undefined) {
	 $("#subnav").load(subnav, null, after_subnav);
};	
 
var subnav_visible = true;
	

});