// PRELOAD ON IMAGES
var menu1_off = new Image(); menu1_off.src = "images/nav_about.gif";
var menu1_on = new Image(); menu1_on.src = "images/nav_about_hi.gif";

var menu2_off = new Image(); menu2_off.src = "images/nav_photogs.gif";
var menu2_on = new Image(); menu2_on.src = "images/nav_photogs_hi.gif";

var menu3_off = new Image(); menu3_off.src = "images/nav_search.gif";
var menu3_on = new Image(); menu3_on.src = "images/nav_search_hi.gif";

var menu4_off = new Image(); menu4_off.src = "images/nav_contact.gif";
var menu4_on = new Image(); menu4_on.src = "images/nav_contact_hi.gif";




// SMART ROLLOVERS
var last_rollover,menuON,no_roll,last_on,last_off;
var menu_default = 0;
function initNav(e){
	if(e){
		menu_default = e;
		rollON(menu_default);
	}
}

function rollON(which){
	if(document.images){
		if(menu_default && menu_default != which){rollOFF(menu_default,1); menuON = false;}
		document.images['menu'+which].src = eval('menu' + which + '_on.src');
		last_on = which;
	}
}

function rollOFF(last,exc){
	if(document.images){
		if(!exc && menu_default && last == menu_default){return false;}
		document.images['menu'+last].src = eval('menu' + last + '_off.src');
		last_off = last;
		if(menu_default && last != menu_default){menuON = true; setTimeout('timer()',20);}
	}
	return false;
}

function timer(){
	if(menuON == true){rollON(menu_default);}
}