function toggleDiv(id)
{
	if (YAHOO.util.Dom.getStyle(id, 'display') != 'none')
	{
		YAHOO.util.Dom.setStyle(id, 'display', 'none');
	}
	else
	{
		YAHOO.util.Dom.setStyle(id, 'display', '');
	}
}

function toggleLegend()
{
	if (YAHOO.util.Dom.getStyle('legendmain', 'display') != 'none')
	{
		YAHOO.util.Dom.get('legendimg').setAttribute('src', '/images/plus.png');
		YAHOO.util.Dom.setStyle('legendmain', 'display', 'none');
	}
	else
	{
		YAHOO.util.Dom.get('legendimg').setAttribute('src', '/images/minus.png');
		YAHOO.util.Dom.setStyle('legendmain', 'display', '');
	}
}

function popImage(imageURL, imageTitle)
{
	var imgWin = window.open('', '_blank', 'scrollbars=no,resizable=1,width=100,height=100,left=10,top=10');
	
	if(!imgWin)
	{
		return true;
	}
	
	imgWin.document.write('<html><head><title>' + imageTitle + '<\/title><script type="text\/javascript">\n'+
	'function resizeWinTo() {\n' +
	'if (!document.images.length) { document.images[0] = document.layers[0].images[0]; }' +
	'var oH = document.images[0].height, oW = document.images[0].width;\n' +
	'if (!oH || window.doneAlready) { return; }\n' + //in case images are disabled
	'window.doneAlready = true;\n'+ //for Safari and Opera
	'var x = window; x.resizeTo(oW + 200, oH + 200);\n' +
	'var myW = 0, myH = 0, d = x.document.documentElement, b = x.document.body;\n' +
	'if (x.innerWidth) { myW = x.innerWidth; myH = x.innerHeight; }\n' +
	'else if (d && d.clientWidth) { myW = d.clientWidth; myH = d.clientHeight; }\n' +
	'else if (b && b.clientWidth) { myW = b.clientWidth; myH = b.clientHeight; }\n' +
	'if (window.opera && !document.childNodes) { myW += 16; }\n' +
	'x.resizeTo(oW = oW + (( oW + 200) - myW), oH = oH + ((oH + 200) - myH));\n' +
	//'var scW = screen.availWidth ? screen.availWidth : screen.width;\n' +
	//'var scH = screen.availHeight ? screen.availHeight : screen.height;\n' +
	//'if (!window.opera) { x.moveTo(Math.round((scW - oW) / 2), Math.round((scH - oH) / 2)); }\n' +
	'}\n' +
	'<\/script>' + '<\/head><body onload="resizeWinTo();">' +
	(document.layers ? ('<layer left="0" top="0">') : ('<div style="position:absolute;left:0px;top:0px;display:table;">')) +
	'<img src='+imageURL+' alt="' + imageTitle + '" onload="resizeWinTo();" onclick="window.close();" />' +
	(document.layers ? '<\/layer>' : '<\/div>') + '<\/body><\/html>');
	imgWin.document.close();
	
	if (imgWin.focus)
	{
		imgWin.focus();
	}
	
	return false;
}

function toggleVisibility (el, state)
{
	var els = document.getElementsByTagName(el);
	
	for (var i = 0; i < els.length; ++i)
	{
		YAHOO.util.Dom.setStyle(els[i], 'visibility', state);
	}
}

function hideSWF()
{
	toggleVisibility('object', 'hidden');
	toggleVisibility('embed', 'hidden');
}

function showSWF()
{
	toggleVisibility('object', 'visible');
	toggleVisibility('embed', 'visible');
}

function hideAds()
{
	//YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'visibility', 'hidden'); }, 'object', 'main_ad');
	//YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'object', 'hidden'); }, 'embed', 'main_ad');
	YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'visibility', 'hidden'); }, 'object', 'main_content_ad');
	YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'object', 'hidden'); }, 'embed', 'main_content_ad');
	
	//YAHOO.util.Dom.setStyle('main_ad', 'visibility', 'hidden');
	//YAHOO.util.Dom.setStyle('main_content_ad', 'visibility', 'hidden');
}

function showAds()
{
	//YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'visibility', 'visible'); }, 'object', 'main_ad');
	//YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'object', 'visible'); }, 'embed', 'main_ad');
	YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'visibility', 'visible'); }, 'object', 'main_content_ad');
	YAHOO.util.Dom.getElementsBy(function(el) { YAHOO.util.Dom.setStyle(el, 'object', 'visible'); }, 'embed', 'main_content_ad');
	
	//YAHOO.util.Dom.setStyle('main_ad', 'visibility', 'visible');
	//YAHOO.util.Dom.setStyle('main_content_ad', 'visibility', 'visible');
}

YAHOO.util.Event.addListener('menu', 'mouseover', hideAds);
YAHOO.util.Event.addListener('menu', 'mouseout', showAds);