var star = new Image();
var star_o = new Image();
star.src = "images/star.jpg";
star_o.src = "images/star_o.jpg";
function changeImage(id, opt, ratingBlock)
{
	for(var i = 1; i <= id; i++)
	{
		document.getElementById("star_" + i + ratingBlock).src = (opt == 0)? star.src : star_o.src;
	}
}

//Post the rating
function postRating(rank, entryID)
{
	var ajax = new AJAX();
	var arrParam = new Array();
	arrParam['rank'] = rank;
	arrParam['entry_id'] = entryID;
	ajax.getRequest('post_rank.php', arrParam, showResponse);
}
//Response handler for http request object
function showResponse(retVal)
{
	var response = retVal.split('<==>');
	self.location = 'about_contest.html?msg=Thank you for your vote. The Winner will be announced after ' + response[0];
}

hs.registerOverlay({
	html: '<div class="closebutton" onclick="return hs.close(this)" title="Close"></div>',
	position: 'top right',
	fade: 2 // fading the semi-transparent overlay looks bad in IE
});
hs.wrapperClassName = 'borderless';