/* rollover for why nav */

var scroller_timer;

function DoScrollerNav (div_name,min_height)
{
	if (document.getElementById(div_name).scrollHeight > min_height)
		ShowDiv ('scroller_nav')
	else
		HideDiv ('scroller_nav')	
}

function move_up(div_name) 
{
   document.getElementById(div_name).scrollTop -= 10;
   scroller_timer = setTimeout('move_up(\''+div_name+'\')',100);

}

function move_down(div_name) 
{
   document.getElementById(div_name).scrollTop += 10;
   scroller_timer = setTimeout('move_down(\''+div_name+'\')', 100);   
}

if (document.images) {

    whyup       = new Image();
    whyup.src   = "images/nav_why_d.gif" ;
    whydown     = new Image() ;
    whydown.src = "images/nav_why_a.gif" ;
    
    aboutup       = new Image();
    aboutup.src   = "images/nav_about_d.gif" ;
    aboutdown     = new Image() ;
    aboutdown.src = "images/nav_about_a.gif" ;
    
    peopleup       = new Image();
    peopleup.src   = "images/nav_people_d.gif" ;
    peopledown     = new Image() ;
    peopledown.src = "images/nav_people_a.gif" ;
    
    ipup       = new Image();
    ipup.src   = "images/nav_ip_d.gif" ;
    ipdown     = new Image() ;
    ipdown.src = "images/nav_ip_a.gif" ;
    
    newsup       = new Image();
    newsup.src   = "images/nav_news_d.gif" ;
    newsdown     = new Image() ;
    newsdown.src = "images/nav_news_a.gif" ;
    
    faqup       = new Image();
    faqup.src   = "images/nav_faq_d.gif" ;
    faqdown     = new Image() ;
    faqdown.src = "images/nav_faq_a.gif" ;
    
    callup       = new Image();
    callup.src   = "images/nav_call_d.gif" ;
    calldown     = new Image() ;
    calldown.src = "images/nav_call_a.gif" ;
    
    ukup       = new Image();
    ukup.src   = "images/nav_uk_d.gif" ;
    ukdown     = new Image() ;
    ukdown.src = "images/nav_uk_a.gif" ;
    
}

function buttondown( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "down.src" );
    }
}

function buttonup ( buttonname )
{
    if (document.images) {
      document[ buttonname ].src = eval( buttonname + "up.src" );
    }
}

var prev_div = "";

function DisplayNews (number)
{
	if (prev_div)
	{
		HideDiv ("news"+prev_div)
		document.getElementById("link"+prev_div).className = "gray_link";					
	}
	
	document.getElementById("link"+number).className = "purple_link";				
	prev_div = number;
	document.getElementById("right_scroller").scrollTop = 0;	
	ShowDiv ("news"+prev_div)		
}


function DisplayPeople (number)
{
//	HideDiv ("intro_text");
//	HideDiv ("intro_pic");
	if (prev_div)
	{
		HideDiv ("pic"+prev_div)
		HideDiv ("bio"+prev_div)
		document.getElementById("link"+prev_div).className = "why_quoter";				
	}
	
	document.getElementById("right_scroller").scrollTop = 0;		
	document.getElementById("link"+number).className = "why_quoter_active";		
	prev_div = number;
	ShowDiv ("pic"+prev_div)		
	ShowDiv ("bio"+prev_div)	
	
	DoScrollerNav ("right_scroller","338")					
}

function DisplayAnswer (number)
{
	if (prev_div)
	{
		HideDiv ("answer"+prev_div)
		document.getElementById("link"+prev_div).className = "why_quoter";
	}
	
	document.getElementById("right_scroller").scrollTop = 0;		
	prev_div = number;
	document.getElementById("link"+number).className = "why_quoter_active";	
	ShowDiv ("answer"+prev_div)		
}

function DisplayQuote (number)
{
	if (prev_div)
	{
		HideDiv ("quote"+prev_div)
		document.getElementById("link"+prev_div).className = "why_quoter";				
	}
	
	document.getElementById("link"+number).className = "why_quoter_active";					
	prev_div = number
	ShowDiv ("quote"+prev_div)		
}

function ShowDiv (div_name)
{
	document.getElementById(div_name).className 				= "visible";	

}

function HideDiv (div_name)
{
	document.getElementById(div_name).className 				= "invisible";	
}