function writeInN()
{
	if ( document.documentElement )
	{
	document.write("<div id\=\"contents3\">");
	document.write("<h3>Navigation, Advice<\/h3>");
	document.write("<p>To navigate through this lesson page by page\:<\/p>");
	document.write("<ul><li id\=\"specZa\">use the arrows in the ");
	document.write("<span id\=\"specZaL\" class\=\"link\" ");
	document.write("onclick\=\"showNav1\(\)\;\" onkeypress\=\"showNav1\(\)\;\">");
	document.write("top-right-hand corner<\/span> of these pages.<\/li>");
	document.write("<li id\=\"specZb\">or use the navigation lines at the ");
	document.write("<span  id\=\"specZbL\" ");
	document.write("onclick\=\"showNav2\(\)\;\" onkeypress\=\"showNav2\(\)\;\">");
	document.write("bottom of the text column<\/span>.<\/li>");
	document.write("<li>or, with Netscape and Internet Explorer, use the left and right arrows on your keyboard.<\/li>");
	document.write("<\/ul><\/div>");
	return;
	}
	else { return false; }
}


function inDOM()
{
	if ( document.documentElement )
	{ 
	document.getElementById("browsers").style.display="none";
	return;
	}
	else { return false; }
}


function showNav1()
{
	if ( document.documentElement )
	{
	setTimeout("document.getElementById('specZ').style.border='dotted medium #0066ff';",1);
	setTimeout("location.href='#specZ';",2);
	setTimeout("document.getElementById('specZaL').style.backgroundColor='#ffffff';document.getElementById('specZaL').style.color='#000000';document.getElementById('specZaL').style.textDecoration='none';",3);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #ffffff';",500);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #0066ff';",1000);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #ffffff';",1500);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #0066ff';",2000);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #ffffff';",2500);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #0066ff';",3000);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #ffffff';",3500);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #0066ff';",4000);
	setTimeout("document.getElementById('specZ').style.border='dotted medium #ffffff';",4500);

	setTimeout("location.href='#specZa';",5000);
	setTimeout("document.getElementById('specZ').style.borderStyle='none';",5001);

	setTimeout("document.getElementById('specZbL').style.backgroundColor='#ffffff';document.getElementById('specZbL').style.color='#0000ff';document.getElementById('specZbL').style.textDecoration='underline';",5500);
	}
	else { return false; }
}

function showNav2()
{
	if ( document.documentElement )
	{
	setTimeout("document.getElementById('nP').style.border='dotted medium #0066ff';",1);
	setTimeout("location.href='#nP';",2);
	setTimeout("document.getElementById('specZbL').style.backgroundColor='#ffffff';document.getElementById('specZbL').style.color='#000000';document.getElementById('specZbL').style.textDecoration='none';",3);

	setTimeout("document.getElementById('nP').style.border='dotted medium #eeeeee';",500);
	setTimeout("document.getElementById('nP').style.border='dotted medium #0066ff';",1000);
	setTimeout("document.getElementById('nP').style.border='dotted medium #eff0f5';",1500);
	setTimeout("document.getElementById('nP').style.border='dotted medium #0066ff';",2000);
	setTimeout("document.getElementById('nP').style.border='dotted medium #eeeeee';",2500);
	setTimeout("document.getElementById('nP').style.border='dotted medium #0066ff';",3000);
	setTimeout("document.getElementById('nP').style.border='dotted medium #eeeeee';",3500);
	setTimeout("document.getElementById('nP').style.border='dotted medium #0066ff';",4000);
	setTimeout("document.getElementById('nP').style.borderStyle='none';",4500);
	setTimeout("location.href='#specZb';",5000);
	setTimeout("document.getElementById('specZaL').style.backgroundColor='#ffffff';document.getElementById('specZaL').style.color='#0000ff';document.getElementById('specZaL').style.textDecoration='underline';",5001);
	}
	else { return false; }
}




function hiL(e,f)
{
	if ( document.documentElement )
	{
	a = document.getElementById(e);
	b = document.getElementById(f);


	a.style.backgroundColor='#ffffcc';a.style.color='#0000ff';
	b.style.backgroundColor='#ffffff';b.style.color='#0000ff';
	return;
	}
	else { return false; }
}

function deL(t,u)
{
	if ( document.documentElement )
	{
	d = document.getElementById(t);
	e = document.getElementById(u);

	d.style.backgroundColor='#eeeeee';d.style.color='#0000ff';
	e.style.backgroundColor='#eeeeee';e.style.color='#0000ff';

	return;
	}
	else { return false; }
}