var agt		= navigator.userAgent.toLowerCase();
var versInt	= parseInt(navigator.appVersion);
var is_ie	= ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_ie3	= (is_ie && (versInt < 4));
var is_ie4	= (is_ie && (versInt == 4) && (agt.indexOf("msie 4")!=-1) );
var is_aol	= (agt.indexOf("aol") != -1);
var is_aol3	= (is_aol && is_ie3);
var is_aol4	= (is_aol && is_ie4);
var is_aol5	= (agt.indexOf("aol 5") != -1);
var is_aol6	= (agt.indexOf("aol 6") != -1);
var is_comp	= (agt.indexOf("compuserve") != -1);
var is_comp2000	= (agt.indexOf("cs") != -1);	 
var is_compie	= (is_comp && is_ie);

function ttn_navBar( tableCellRef, hoverFlag, navStyle, id) 
{
	if ( hoverFlag ) 
	{
		switch ( navStyle ) 
		{
			case 1:
				document.getElementById(id).style.backgroundColor = '#eb99ad';
				document.getElementById(id).style.borderTopColor = '#eb99ad';				
				tableCellRef.style.backgroundColor = '#c00';
				break;
			default:
				if ( document.getElementsByTagName ) 
				{
					tableCellRef.getElementsByTagName( 'a' )[0].style.color = '#c00';
				}
		}
	} 
	else 
	{
		switch ( navStyle ) 
		{
			case 1:
				document.getElementById(id).style.backgroundColor = '#9cf';		
				document.getElementById(id).style.borderTopColor = '#9cf';						
				tableCellRef.style.backgroundColor = '#036';
				break;
			default:
				if ( document.getElementsByTagName ) 
				{
					tableCellRef.getElementsByTagName( 'a' )[0].style.color = '#000';
				}
		}
	}
}

function ttn_navBarClick( tableCellRef, navStyle, url, id ) 
{
	ttn_navBar( tableCellRef, 0, navStyle, id);
	ttn_goTo( url );
}

function ttn_goTo( url ) 
{
	if (url != '') window.location.href = url;
}