var dcurrent = 1;
var rint;

function rotatePack( dindex, manual )
{
	if( dindex == null )
		dindex = dcurrent == 2 ? 1 : dcurrent + 1;
	
	if( manual )
		clearInterval( rint );
	
	document.getElementById( 'pack_content_'+dcurrent ).style.display = 'none';
	document.getElementById( 'pack_link_'+dcurrent ).className = document.getElementById( 'pack_link_'+dcurrent ).className.replace( ' current', '' ); 
	document.getElementById( 'pack_content_'+dindex ).style.display = 'block';
	document.getElementById( 'pack_link_'+dindex ).className += ' current';
	dcurrent = dindex;
}


function startPackRotation()
{
	rint = setInterval( "rotatePack()", 10000 );
}

window.onlad = startPackRotation();

function writeCookie(){
            var date = new Date();
            date.setTime(date.getTime()+(30*60*1000));
            var expires = "; expires="+date.toGMTString();
            document.cookie = "visited="+escape('true')+"; expires="+expires;
}

function readCookie() {
        var search = "visited=";
        if(document.cookie.length>0){
            offset = document.cookie.indexOf(search);
            if(offset!=-1) return true;
            
        }
        return false;
}