// 
function getUrlVars()
{
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}

// 
function fadeDownArrow(arrow, speed) {
	// 
	$(arrow).animate({
		opacity: 0.2
	}, speed, function() {
		// Animation complete.
	});
}

// 
function fadeUpArrow(arrow, speed) {
	// 
	$(arrow).animate({
		opacity: 0.7
	}, speed, function() {
		// Animation complete.
	});
}