var worldsvisible=0;
function toggle_worlds()
{
	if(worldsvisible==0)
	{
		smoothHeight('personalise_worlds',0,72,5, 'o')
		worldsvisible=1;
	} else
	{
		smoothHeight('personalise_worlds',72,0,5, 'o')
		worldsvisible=0;
	}
}

function save_worlds()
{
	
	smoothHeight('personalise_worlds',72,0,5, 'o')
	worldsvisible=0;
	
	for(var x=0; x<channels.length; x++)
	{		
		
		if(document.getElementById('worlds_channel_' + channels[x])!=null)
		{
		if(document.getElementById('worlds_channel_' + channels[x]).checked)
		{
			setCookie('worlds_channel_' + channels[x],'yes',90)
		} else
		{
			setCookie('worlds_channel_' + channels[x],'',90)
		}
		}
	}
	
	display_worlds();
}


function display_worlds()
{
	ajax.open("GET", '/ajax/worlds.frontpage.php?blogs=' + blogs, true);
	ajax.onreadystatechange = worlds_updateresponse;
	ajax.send(null);
}

function worlds_updateresponse()
{
	 if (ajax.readyState == 4)
	 {
	 	document.getElementById('worlds').innerHTML=ajax.responseText;	
	 	worlds=document.getElementById('worlds_new').value; 	
	 	setCookie('worlds',worlds,90)
	 }
}

function more_worlds()
{
	worlds++;
	if(worlds>6) worlds=6;
	setCookie('worlds',worlds,90);
	
	display_worlds();
}

function less_worlds()
{
	worlds--;
	if(worlds<0) worlds=0;
	setCookie('worlds',worlds,90);
	display_worlds();
}

function popup_worlds(id)
{
	popup_startupdate('/ajax/popup_worlds.php?id=' +id);
	setVisible('popup');
}