function i_set_status(new_status)
{
	expireDate = new Date();
	expireDate.setTime(expireDate.getTime() + (1000 * 60 * 60 * 24 * 365));
	expireStr = expireDate.toGMTString();
	document.cookie="crgs_infobox_disable=" + ((new_status)?"0":"1") + ";expires=" + expireStr;
	document.location.reload();
}




var i_feeds = new Array();
i_feeds.push( new Array("popular_feeds","uk") );
i_feeds.push( new Array("popular_feeds","world") );
i_feeds.push( new Array("popular_feeds","sport") );
i_feeds.push( new Array("popular_feeds","business") );
i_feeds.push( new Array("popular_feeds","technology") );
i_feeds.push( new Array("popular_feeds","on_this_day") );
i_feeds.push( new Array("popular_feeds","strange_news") );

/* write infobox */
document.write("<link rel=\"stylesheet\" type=\"text/css\" href=\"/infobox/infobox.css\" /><table id=\"i_ui_table\" width=\"80%\" cellspacing=\"0\" cellpadding=\"0\"><tr id=\"i_ui_tabbar\"><td class=\"i_ui_tab\" width=\"1%\" valign=\"middle\" nowrap id=\"i_ui_tab_popular_feeds_uk\" onclick=\"i_change_feed(\'popular_feeds\',\'uk\')\">UK</td><td class=\"i_ui_tab\" width=\"1%\" valign=\"middle\" nowrap id=\"i_ui_tab_popular_feeds_world\" onclick=\"i_change_feed(\'popular_feeds\',\'world\')\">World</td><td class=\"i_ui_tab\" width=\"1%\" valign=\"middle\" nowrap id=\"i_ui_tab_popular_feeds_sport\" onclick=\"i_change_feed(\'popular_feeds\',\'sport\')\">Sport</td><td class=\"i_ui_tab\" width=\"1%\" valign=\"middle\" nowrap id=\"i_ui_tab_popular_feeds_business\" onclick=\"i_change_feed(\'popular_feeds\',\'business\')\">Business</td><td class=\"i_ui_tab\" width=\"1%\" valign=\"middle\" nowrap id=\"i_ui_tab_popular_feeds_technology\" onclick=\"i_change_feed(\'popular_feeds\',\'technology\')\">Technology</td><td class=\"i_ui_tab\" width=\"1%\" valign=\"middle\" nowrap id=\"i_ui_tab_popular_feeds_on_this_day\" onclick=\"i_change_feed(\'popular_feeds\',\'on_this_day\')\">On This Day</td><td class=\"i_ui_tab\" width=\"1%\" valign=\"middle\" nowrap id=\"i_ui_tab_popular_feeds_strange_news\" onclick=\"i_change_feed(\'popular_feeds\',\'strange_news\')\">Strange News</td><td class=\"i_ui_tab_spacer\" width=\"99%\">&nbsp;<br />&nbsp;</td></tr><tr id=\"i_ui_body_row\"><td id=\"i_ui_body\" valign=\"top\" colspan=\"8\"><div id=\"i_ui_body_inner\" onmouseover=\"this.className=\'i_ui_body_inner_on\'\" onmouseout=\"this.className=\'i_ui_body_inner_off\'\">&nbsp;</div></td></tr></table>");

/* xmlhttprequest object */
var i_req;
/* array of stories for this feed. each element is an array: [title, description, link] */
var i_stories;
/* index of the current story */
var i_story;
/* time to keep each story active */
var i_story_length = 10000;
/* various timeouts for fading animation and waiting for new story */
var i_story_timeout, i_fade_in_timeout, i_fade_out_timeout;
/* current opacity of the text, 0 = transparent, 1 = opaque */
var i_opacity = 0;

function i_go()
{
	window.location = i_stories[i_story][2];
}

/* change to different feed */
function i_change_feed(category, name)
{
	/* clearing timeouts stops the script going insane */
	window.clearTimeout(i_story_timeout);
	window.clearTimeout(i_fade_in_timeout);
	window.clearTimeout(i_fade_out_timeout);

	/* write a cookie so the page remembers which tab should be active by default
	make the cookie expire in a year's time */
	expireDate = new Date();
	expireDate.setTime(expireDate.getTime() + (1000 * 60 * 60 * 24 * 365));
	expireStr = expireDate.toGMTString();
	document.cookie = "crgsonline_infobox_tab=" + category + ":" + name + ";expires=" + expireStr;

	/* display loading message */
	document.getElementById("i_ui_body_inner").innerHTML = "<span id=\"i_ui_link\">Loading feed...</span><br />&nbsp;";

	/* send an http request */
	i_get_feed(category, name);

	/* update the tab display */
	for(i_i = 0; i_i < i_feeds.length; i_i++)
	{
		i_thiscat = i_feeds[i_i][0];
		i_thisname = i_feeds[i_i][1];
		document.getElementById("i_ui_tab_" + i_thiscat + "_" + i_thisname).className = ((i_thiscat == category && i_thisname == name) ? "i_ui_tab_on" : "i_ui_tab");
	}
}

/* request feed from server */
function i_get_feed(category, name)
{
	/* get time in milliseconds since epoch to prevent caching of feed.php */
	uncache = (new Date()).getTime().toString();
	href = "/infobox/feed.php?category=" + category + "&name=" + name + "&uncache=" + uncache;
	/* everything except IE on Windows */
	if (window.XMLHttpRequest)
	{
		i_req = new XMLHttpRequest();
		i_req.onreadystatechange = i_got_feed;
		i_req.open("GET", href, true);
		i_req.send(null);
	}
	/* IE on windows */
	else if (window.ActiveXObject)
	{
		i_req = new ActiveXObject("Microsoft.XMLHTTP");
		if (i_req)
		{
			i_req.onreadystatechange = i_got_feed;
			i_req.open("GET", href, true);
			i_req.send();
		}
	}
}
/* http request for feed complete */

function i_got_feed()
{
	/* readyState == 4 indicates transfer is complete. 200 is the http code for "OK" */
	if(i_req.readyState == 4 && i_req.status == 200)
	{
		/* each story is separated by a newline */
		data_in = i_req.responseText.split("\n");
		var numstories = 0;
		i_stories = new Array();
		for(idx=0;idx<data_in.length;idx++)
		{
			if(data_in[idx] == "") continue;
			/* within each story, a \r separates [title,description,link] */
			i_stories[idx] = data_in[idx].toString().split("\r");
			numstories++;
		}
		/* show first story */
		i_change_story(0);
	}
}
/* show next story */
function i_next_story()
{
	/* increment story ID, wrap over to 0 if necessary, update */
	new_idx = i_story + 1;
	if(new_idx >= i_stories.length)
	{
		new_idx = 0;
	}
	i_change_story(new_idx);
}
/* change story index */
function i_change_story(story_idx)
{

	/* clear timeouts to prevent script going insane */
	window.clearTimeout(i_story_timeout);
	window.clearTimeout(i_fade_in_timeout);
	window.clearTimeout(i_fade_out_timeout);

	/* update variables and fade out the old story */
	i_story = story_idx;
	i_change_opacity(1);
	i_fade_out();
	
}
/* ready to change story - finished fading out the old one */
function i_change_story_ready()
{
	/* clear timeouts */
	window.clearTimeout(i_story_timeout);
	window.clearTimeout(i_fade_in_timeout);
	window.clearTimeout(i_fade_out_timeout);
	
	if(i_story >= i_stories.length)
	{
		return;
	}

	/* write new story to i_ui_body_inner */
	document.getElementById("i_ui_body_inner").innerHTML = "<a id=\"i_ui_link\" onmouseover=\"i_over()\" onmouseout=\"i_out()\" href=\"" + i_stories[i_story][2] + "\"><em>" + i_stories[i_story][0] + "</em><br />" + i_stories[i_story][1] + "</a>";
//	document.getElementById("i_ui_body_inner").innerHTML = "<em>" + i_stories[i_story][0] + "</em><br />" + i_stories[i_story][1] + "";
	
	/* fade in this new story */
	i_fade_in();
	/* work out what the index of the next story will be */
	new_idx = i_story + 1;
	if(new_idx >= i_stories.length)
	{
		new_idx = 0;
	}
	/* set a timeout for the next story */
	i_story_timeout = window.setTimeout("i_change_story(" + new_idx + ")", i_story_length);
}
/* fade out a story */
function i_fade_out()
{
	/* reduce opacity - can't be less than 0 */
	i_opacity -= 0.1;
	if(i_opacity < 0) i_opacity = 0;
	i_change_opacity();	
	
	/* finished fading out so we're ready to change the story */
	if(i_opacity <= 0)
	{
		i_fade_out_timeout = window.setTimeout("i_change_story_ready()", 30);
	}
	/* or keep fading out a bit more */
	else
	{
		i_fade_out_timeout = window.setTimeout("i_fade_out()", 30);
	}
}
/* fade in a story */
function i_fade_in()
{
	/* increase opacity - can't be greater than 1 */
	i_opacity += 0.1;
	if(i_opacity > 1) i_opacity = 1;
	i_change_opacity();
	
	/* do nothing if we're finished fading in - kept the IF statement in case
	you want to do something here */
	if(i_opacity >= 1)
	{
	}
	/* keep going if we haven't finished yet */
	else
	{
		i_fade_in_timeout = window.setTimeout("i_fade_in()", 30);
	}
}
/* change opacity */

var i_colours=new Array("#D8E5F8","#C8D8E8","#B8C8D8","#A8B8C8","#98A8B8","#788898","#586878","#384858","#283848","#182838","#000000");

function i_change_opacity(new_opacity)
{
	/* everything except IE */
	//document.getElementById("i_ui_body_table").style.opacity = i_opacity;
	/* IE */
	//window.status = i_opacity + " = " + parseInt((i_opacity*10)) + " = " + i_colours[(i_opacity*10)];
	document.getElementById("i_ui_link").style.color = i_colours[ parseInt((i_opacity*10)) ];
	//document.getElementById("i_ui_body_table").style.filter = "alpha(opacity=" + (i_opacity*100) + ")";
}

/* open customisation window */
function i_customise()
{
	i_opened = window.open("/infobox/customise.php","i_customise_win","width=400,height=500,scrollbars=yes");
	if(!i_opened)
	{
		/* open standalone version of window.open() blocked */
		window.location = "/infobox/customise.php?s=1";
	}
}

/* if the user does actually have feeds then write a startup function
that will load the zeroth feed, or, if they have a cookie set, their own
chosen feed (as long as it exists) */
if(i_feeds.length > 0)
{
	window.onload=function()
	{
		/* do we want to load the zeroth feed */
		i_load_default = true;
		/* find a cookie */
		if(document.cookie.toString().indexOf("crgsonline_infobox_tab") != -1)
		{
			infoStr = document.cookie.toString().split("crgsonline_infobox_tab=")[1].split(";")[0];
			infoStr = infoStr.split(":");
			fcategory = infoStr[0];
			fname = infoStr[1];
			/* go through the user's feeds, check the feed in the cookie still exists */
			for(i=0;i<i_feeds.length;i++)
			{
				if(i_feeds[i][0] == fcategory && i_feeds[i][1] == fname)
				{
					/* the feed exists so change the feed and stop it loading the zeroth feed */
					i_change_feed(fcategory, fname);
					i_load_default = false;
				}
			}
		}
		/* load the zeroth feed if no customised feed has been stored */
		if(i_load_default)
		{
			i_change_feed(i_feeds[0][0], i_feeds[0][1]);
		}
	}
}


function i_over()
{
	document.getElementById("i_ui_link").style.color = "#000060";
}
function i_out()
{
	document.getElementById("i_ui_link").style.color = "#000000";
}