navPreLoadImage = new Image(); 
navPreLoadImage.src = "/pics/nav_bg.png";

var headlineArray = new Array();

// pop
function pop(url) {
	window.open(url,'');
	return;
}

function showLogin(me) {
	a = document.getElementById('loginDiv');
	if ( a.style.display == "block" ) {
		a.style.display = "none";
	} else if ( a.style.display == "none" ) {
		a.style.display = "block";
		document.getElementById('loginFormFocus').focus();
	}
}

var headline_count;
var headline_interval;
var old_headline = 0;
var current_headline=0;

function writeHeadlines(){
	var theHeadlines = "";
	for(var i = 0; i < headlineArray.length; i++){
		theHeadlines+=headlineArray[i];
	}
	document.getElementById("scrollup").innerHTML = theHeadlines;
	startHeadlines();
}


function startHeadlines(){
	headline_count = $("div.headline").size();
	current_headline = Math.floor(Math.random()*headline_count);
	var h1=$("#headline"+current_headline).height();
	var h2=$("#scrollup").height();
	h=Math.round((h2-h1)/2.3);
	$("#headline"+current_headline).show().animate({top: h},2000);  
	if (headline_count>1) headline_interval = setInterval(headline_rotate,20000); //time in milliseconds
	old_headline = current_headline;
}

function headline_rotate() {
	current_headline = Math.floor(Math.random()*headline_count);
	if ( current_headline == old_headline ) current_headline = (old_headline + 1) % headline_count;
	var h2=$("#scrollup").height();
	var h1=$("#headline"+current_headline).height();
	var h3=$("#headline"+old_headline).height();
	$("#headline"+old_headline).animate({top: -h3},2000, function() {
    	$(this).css('top', h2+'px');
    });
	h=Math.round((h2-h1)/2.3);
	$("#headline"+current_headline).show().animate({top: h},2000);  
	old_headline = current_headline;
}