var window_status = new Array()

var images_loaded = null

window_status[0] = "Stanford University's homepage"
window_status[1] = "Shen lab homepage"
window_status[2] = "User Panel"
window_status[3] = "Calendar"
window_status[5] = "Protocols"
window_status[6] = "Strains"
window_status[7] = "RNAi"
window_status[8] = "File Storage"
window_status[9] = "Intralab"
window_status[10] = "Labsite"
window_status[11] = "Log Out"
window_status[12] = "Wormbase"
window_status[13] = "Constructs"
window_status[14] = "Personnel"

if (document.images) {
		var on_stanfordtree = new Image();
		var on_home = new Image();
		var on_labsite = new Image();
		var on_intralab = new Image();
		var on_logout = new Image();
		var on_userpanel = new Image();
		var on_calendar = new Image();
		var on_protocols = new Image();
		var on_strains = new Image();
		var on_rnai = new Image();
		var on_filestorage = new Image();
		var on_wormbutton = new Image();
		var on_constructs = new Image();
		var on_personnel = new Image();
		var off_stanfordtree = new Image();
		var off_home = new Image();
		var off_labsite = new Image();
		var off_intralab = new Image();
		var off_logout = new Image();
		var off_userpanel = new Image();
		var off_calendar = new Image();
		var off_protocols = new Image();
		var off_strains = new Image();
		var off_rnai = new Image();
		var off_filestorage = new Image();
		var off_wormbutton = new Image();
		var off_constructs = new Image();
		var off_personnel = new Image();
}

function load_images(which) {
	if (document.images) {
		images_loaded = 1;
		if (which == "home") {
			on_stanfordtree.src = "images/stanfordtree_on.png";
			on_home.src = "images/home_on.png";
			on_labsite.src = "images/labsite_on.png";
			on_intralab.src = "images/intralab_on.png";
			on_logout.src = "images/logout_on.png";
			on_userpanel.src = "images/userpanel_on.png";
			on_calendar.src = "images/calendar_on.png";
			on_protocols.src = "images/protocols_on.png";
			on_strains.src = "images/strains_on.png";
			on_rnai.src = "images/rnai_on.png";
			on_filestorage.src = "images/filestorage_on.png";
			on_wormbutton.src = "images/wormbutton_on.png";
			on_constructs.src = "images/constructs_on.png";
			on_personnel.src = "images/personnel_on.png";
			off_stanfordtree.src = "images/stanfordtree_off.png";
			off_home.src = "images/home_off.png";
			off_labsite.src = "images/labsite_off.png";
			off_intralab.src = "images/intralab_off.png";
			off_logout.src = "images/logout_off.png";
			off_userpanel.src = "images/userpanel_off.png";
			off_calendar.src = "images/calendar_off.png";
			off_protocols.src = "images/protocols_off.png";
			off_strains.src = "images/strains_off.png";
			off_rnai.src = "images/rnai_off.png";
			off_filestorage.src = "images/filestorage_off.png";
			off_wormbutton.src = "images/wormbutton_off.png";
			off_constructs.src = "images/constructs_off.png";
			off_personnel.src = "images/personnel_off.png";
			}
		}
	}

function flipimage(direction, imagename, imagenumber) {
	if (direction == "on") {
		window.status = window_status[imagenumber];
		}
	else {
		window.status = "";
		}
	if (images_loaded) {
 		img_source = eval(direction + "_" + imagename + ".src");
		document.images[imagename].src = img_source;
		}
	}