window.onload=function()
{
	nsidcLinkStyles();
	frozengroundLinkStyles();
	// add other functions to be called onload below

}

function frozengroundLinkStyles()
{
	var url = document.location.href;
	
// conditions for Sea Ice navigation 

//  Introduction
	
	if(url.match(/\/frozenground\/index.html/))
	{
		document.getElementById("navIntro").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navIntro').innerHTML = 'Introduction';
	}

// Physical Science
	
	if(url.match(/\/frozenground\/physical.html/))
	{
		document.getElementById("navPhysicalSci").className = "secondarySiteNavActive";
		//document.getElementById('navPhysicalSci').innerHTML = 'Physical Science';	
	}
	
// How Frozen Ground Forms
	
	if(url.match(/\/frozenground\/how_fg_forms.html/))
	{
		document.getElementById("navFGform").className = "secondarySiteNavActive";
		//document.getElementById('navFGform').innerHTML = 'How Frozen Ground Forms';	
	}
	
// What Affects Frozen Ground
	
	if(url.match(/\/frozenground\/what_affects_fg.html/))
	{
		document.getElementById("navFGaffects").className = "secondarySiteNavActive";
		//document.getElementById('navFGaffects').innerHTML = 'What Affects Frozen Ground';	
	}

// Where Is Frozen Ground
	
	if(url.match(/\/frozenground\/whereis_fg.html/))
	{
		document.getElementById("navFGwhere").className = "secondarySiteNavActive";
		//document.getElementById('navFGwhere').innerHTML = 'Where Is Frozen Ground';	
	}

// How Frozen Ground Affects Land
	
	if(url.match(/\/frozenground\/how_fg_affects_land.html/))
	{
		document.getElementById("navFGland").className = "secondarySiteNavActive";
		//document.getElementById('navFGland').innerHTML = 'How Frozen Ground Affects Land';	
	}
	
// Frozen Ground and Climate Change
	
	if(url.match(/\/frozenground\/climate.html/))
	{
		document.getElementById("navClimate").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navClimate').innerHTML = 'Frozen Ground and Climate Change';	
	}
	
// Ecology
	
	if(url.match(/\/frozenground\/ecology.html/))
	{
		document.getElementById("navEcology").className = "secondarySiteNavActive";
		//document.getElementById('navEcology').innerHTML = 'Ecology';	
	}	


// Animals and Frozen Ground
	
	if(url.match(/\/frozenground\/animals.html/))
	{
		document.getElementById("navAnimals").className = "secondarySiteNavActive";
		//document.getElementById('navAnimals').innerHTML = 'Animals and Frozen Ground';	
	}

// Plants and Frozen Ground
	
	if(url.match(/\/frozenground\/plants.html/))
	{
		document.getElementById("navPlants").className = "secondarySiteNavActive";
		//document.getElementById('navPlants').innerHTML = 'Plants and Frozen Ground';	
	}
	
	
// People and Frozen Ground
	
	if(url.match(/\/frozenground\/people.html/))
	{
		document.getElementById("navPeople").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navPeople').innerHTML = 'People and Frozen Ground';	
	}

// Studying Frozen Ground

	if(url.match(/frozenground\/studying.html/))
	{
		document.getElementById("navStudying").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}


// Activities and More Information

	if(url.match(/frozenground\/other.html/))
	{
		document.getElementById("navActivities").className = "secondarySiteNavActive";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}
	
	if(url.match(/frozenground\/interview.html/))
	{
		document.getElementById("navInterview").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}
	
	if(url.match(/frozenground\/activities.html/))
	{
		document.getElementById("navClassroom").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}
	
	if(url.match(/frozenground\/reading.html/))
	{
		document.getElementById("navReading").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}

// Credits and References 

	if(url.match(/frozenground\/credits.html/))
	{
		document.getElementById("navCredits").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}
	
// Feedback

	if(url.match(/frozenground\/feedback.html/))
	{
		document.getElementById("navFeedback").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}
	
	if(url.match(/frozenground\/mail_aafg_form.pl/))
	{
		document.getElementById("navFeedback").className = "secondarySiteNavActiveNoSubnav";
		//document.getElementById('navCredits').innerHTML = 'Credits and References';	
	}

	else {}
			

}