if(document.images)
{
	var about_off = new Image();
	var about_over = new Image();
	var about_active = new Image();
	var broadcast_off = new Image();
	var broadcast_over = new Image();
	var broadcast_active = new Image();
	var promo_off = new Image();
	var promo_over = new Image();
	var promo_active = new Image();
	var news_off = new Image();
	var news_over = new Image();
	var news_active = new Image();
	var contribute_off = new Image();
	var contribute_over = new Image();
	var contribute_active = new Image();
	var home_off = new Image();
	var home_over = new Image();
	var home_active = new Image();
	
	about_off.src = "images/aboutwmb_off.gif";
	about_over.src = "images/aboutwmb_over.gif";
	about_active.src = "images/aboutwmb_active.gif";
	broadcast_off.src = "images/broadcast_off.gif";
	broadcast_over.src = "images/broadcast_over.gif";
	broadcast_active.src = "images/broadcast_active.gif";
	promo_off.src = "images/promo_off.gif";
	promo_over.src = "images/promo_over.gif";
	promo_active.src = "images/promo_active.gif";
	news_off.src = "images/electronicnews_off.gif";
	news_over.src = "images/electronicnews_over.gif";
	news_active.src = "images/electronicnews_active.gif";
	contribute_off.src = "images/contribute_off.gif";
	contribute_over.src = "images/contribute_over.gif";
	contribute_active.src = "images/contribute_active.gif";
	home_off.src = "images/home_off.gif";
	home_over.src = "images/home_over.gif";
	home_active.src = "images/home_active.gif";
}
function ImageSwap(imgName)
{
	if(document.images)
	{
		document.images[imgName].src = eval(imgName + "_over.src");
	}
}
function SwapBack(imgName, activepage)
{
	if(document.images)
	{
		if(imgName == 'home')
		{
			document.images[imgName].src = eval(imgName + "_off.src");
		}
		else
		{
			if(imgName == activepage)
			{
				document.images[imgName].src = eval(imgName + "_active.src");
			}
			else
			{
				document.images[imgName].src = eval(imgName + "_off.src");
			}
		}
	}
}
function SwapPanels(panelID)
{
	switch(panelID)
	{
		case 'fieldreports':
			if(document.images)
			{
				document.images['broadcasttabs'].src = "images/broadcast_fldrpt.gif";
				document.getElementById('fieldreports').style.display = '';
				document.getElementById('audioclips').style.display = 'none';
				document.getElementById('newsletters').style.display = 'none';
			}
			break
		case 'audioclips': 
			if(document.images)
			{
				document.images['broadcasttabs'].src = "images/broadcast_audio.gif";
				document.getElementById('fieldreports').style.display = 'none';
				document.getElementById('audioclips').style.display = '';
				document.getElementById('newsletters').style.display = 'none';
			}
			break
		case 'newsletters': 
			if(document.images)
			{
				document.images['broadcasttabs'].src = "images/broadcast_newsltr.gif";
				document.getElementById('fieldreports').style.display = 'none';
				document.getElementById('audioclips').style.display = 'none';
				document.getElementById('newsletters').style.display = '';
			}
			break
	}
}