// JavaScript Document
var sound = null;

window.onload = function() {
	if(document.getElementById) {
		initHovers();	
		//initSound();
	}
}

function initHovers() {
	
	var link1 = document.getElementById("link1");
	var link2 = document.getElementById("link2");
	var link3 = document.getElementById("link3");
	
	var facebook = document.getElementById("facebook");
	var twitter  = document.getElementById("twitter");
	
	sound = document.getElementById("sound1");
	
	performHover(link1, "images/link1a.png", "images/link1.png" );
	performHover(link2, "images/link2a.png", "images/link2.png" );
	
	// If not on the leaderboard page, then do leaderboard hover
	if( document.getElementById("leaderboard") ) performHover(link3, "images/link5a.png", "images/link5.png" );
		else performHover(link3, "images/link3a.png", "images/link3.png" );
	
	performHover(facebook, "images/shareFacebook2.png", "images/shareFacebook.png" );
	performHover(twitter, "images/shareTwitter2.png", "images/shareTwitter.png" );
}
function performHover(element, target, original) {
	element.onmouseover = function() { this.setAttribute("src", target); playSound("rollover.wav");	return false; }	
	element.onmouseout  = function() { this.setAttribute("src", original); return false; }	
}

function playSound(soundfile) {
	document.getElementById("dummy").innerHTML=
	"<embed src=\""+soundfile+"\" hidden=\"true\" autostart=\"true\" loop=\"false\" />";
}