function toggleDiv(_id){_oDivStyle=document.getElementById(_id).style;(_oDivStyle.display=='block')?_oDivStyle.display='none':_oDivStyle.display='block';}
function popUpTimeline(mylink, windowname)
{
if (! window.focus)return true;
var href;
if (typeof(mylink) == 'string')
   href=mylink;
else
   href=mylink.href;
window.open(href,windowname,'width=760,height=410,scrollbars=no');
return false; }

function randomize( l, t ){
 t -= 1;
 return Math.floor( Math.random() * ( t - l + 1 ) ) + l;
}

function getBcgRandom(){
 var cookie_check = readCookie( 'css-switch' );
 var bg_holder = document.getElementById( 'background' );
 if( cookie_check != 'text-only' && bg_holder && bcimg_res ){
	 var img_path = '/arriva/images/';
	 var index = randomize( 0, bcimg_res.length );
	 bg_holder.style.backgroundImage = "url('"+ img_path + bcimg_res[ index ] + ".jpg')";
}else if( cookie_check == 'text-only' && bg_holder ){
	 bg_holder.style.backgroundImage = "none";
 }

}