var whichNav 
function toggleNav (navID) 
{
	whichNav = document.getElementById(navID);
		if (whichNav.className=="navHidden") 
				{ 
					whichNav.className="navShown"; 
					
				} 
		else 
				{
					whichNav.className="navHidden"; 
		
				}
				if (navID == 'about'){
					
					document.getElementById('joints').className="navHidden";
					document.getElementById('tools').className="navHidden";
					document.getElementById('friction_management').className="navHidden";
					document.getElementById('resources').className="navHidden";
					
				}
				if (navID == 'joints'){
					
					document.getElementById('about').className="navHidden";
					document.getElementById('tools').className="navHidden";
					document.getElementById('friction_management').className="navHidden";
					document.getElementById('resources').className="navHidden";
					
				}
				if (navID == 'tools'){
					
					document.getElementById('joints').className="navHidden";
					document.getElementById('about').className="navHidden";
					document.getElementById('friction_management').className="navHidden";
					document.getElementById('resources').className="navHidden";
					
				}
				if (navID == 'friction_management'){
					
					document.getElementById('joints').className="navHidden";
					document.getElementById('tools').className="navHidden";
					document.getElementById('about').className="navHidden";
					document.getElementById('resources').className="navHidden";
					
				}
				if (navID == 'resources'){
					
					document.getElementById('joints').className="navHidden";
					document.getElementById('tools').className="navHidden";
					document.getElementById('friction_management').className="navHidden";
					document.getElementById('about').className="navHidden";
					
				}
		
			
} 

var winfile = "";
function popup(winfile) {
window.open(winfile,'','toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=yes,copyhistory=no,height=400,width=550'); }
function linkEmail(un)
			{
				var at = "@";
				var one = "mai";
				var two = "lto:";
				var mh = "tamarackhti.com";
				var txt;
				if (linkEmail.arguments.length >= 2)
					mh = linkEmail.arguments[1];
				if (linkEmail.arguments.length == 3)
					txt = linkEmail.arguments[2];
				else
					txt = un + at + mh;
				document.write("<a href=\"" + one + two + un + at + mh + "\">" + txt + "</a>");
			}
			
function showDetail(identity){
document.getElementById(identity).style.display = "block"; 
}
function hideDetail(identity){
document.getElementById(identity).style.display = "none"; 
}