image_array_names = new Array();
image_array = new Array();
image_preTag = 'images/nav/';
var array_loaded = false;
var admin_arra_loaded = false;

image_array_names = ["nav_02off.gif","nav_02on.gif",
			"nav_04off.gif","nav_04on.gif",
			"nav_06off.gif","nav_06on.gif",
			"nav_08off.gif","nav_08on.gif",
			"nav_10off.gif","nav_10on.gif",
			"nav_12off.gif","nav_12on.gif",
			"nav_14off.gif","nav_14on.gif"];

function preload() {
	for (var i = 0; i < image_array_names.length; i++) {
		image_array[i] = new Image();
		image_array[i] = image_array_names[i];
	}
	array_loaded = true;
}


function image_animate(name,image_no)
{
	if(array_loaded){
	    document.images[name].src = image_preTag + image_array[image_no];
	   
		//alert(document.images[name].src);
	}
}

var navSubItemArray = new Array();
navSubItemArray[0] = "subNav_about";
navSubItemArray[1] = "subNav_operations";
//navSubItemArray[2] = "subNav_bunker";
navSubItemArray[2] = "subNav_contact";
navSubItemArray[3] = "subNav_news";

function navOff() {
    for (i = 0; i <= navSubItemArray.length - 1; i++) {
        try {
            document.getElementById(navSubItemArray[i]).style.visibility = "hidden";
        }
        catch (e) {
        }
	}
}

function navOn(navDiv) {
    try {
        navOff();
        switch (navDiv) {
            case ('nav_about'):
                document.getElementById('subNav_about').style.visibility = "visible";
                break
            case ('nav_operations'):
                document.getElementById('subNav_operations').style.visibility = "visible";
                break
                //case ('nav_bunker'):
                //document.getElementById('subNav_bunker').style.visibility="visible";
                //break
            case ('nav_contact'):
                document.getElementById('subNav_contact').style.visibility = "visible";
                break
            case ('nav_news'):
                document.getElementById('subNav_news').style.visibility = "visible";
                break
        }
    } catch (e) {
    }
	
}

function navSubOn(subDiv) {
	subDiv.style.background="#657C94";
}

function navSubOff(subDiv) {
	subDiv.style.background="#013469";
}


Adminimage_array_names = new Array();
Adminimage_array = new Array();
Adminimage_array_names = ["nav_con_off.gif", "nav_con_on.gif",
                        "nav_office_off.gif", "nav_office_on.gif",
                        "nav_department_off.gif", "nav_department_on.gif"];


function preLoadAdminPage() {
    for (var i = 0; i < Adminimage_array_names.length; i++) {
        Adminimage_array[i] = new Image();
        Adminimage_array[i] = Adminimage_array_names[i];
    }
    admin_arra_loaded = true;
}


function Adminimage_animate(name, image_no) {
    if (admin_arra_loaded) {
        //document.images[name].src = image_preTag + image_array[image_no];
        alert(document.images[name].src);
    }
}