function onWeeklyTipChange(ddl)
{
	var tipID = ddl.options[ddl.selectedIndex].value;
	
	if(tipID == "")
		return;
	
	document.getElementById("tip_title").innerHTML = weeklyTips[tipID].title;
	document.getElementById("tip_body").innerHTML = weeklyTips[tipID].body;
	
	ddl.selectedIndex = 0;
	ddl.blur();
}

// WeeklyTip class definition
function WeeklyTip(title, body)
{
	this.title = title;
	this.body = body;
}