/*

 * BetterTip

 * Created by Edgar Verle

 * BetterTip is made for the jQuery library.

 */



$(BT_init);



var BT_open_wait = 300; //time in millis to wait before showing dialog

var BT_close_wait = 0; //time in millis to wait before closing dialog

var BT_cache_enabled = true;

var BT_events = new Array();

var BT_titles = new Array();



function BT_init(){

	

    $("a.betterTip").parent("div.betterTip")

    .hover(function(){BT_hoverIn($(this).children("a.betterTip")[0]); return false;},

    	   function(){BT_hoverOut($(this).children("a.betterTip")[0])})

    ;

    

    $("a.betterTip").filter(function(index){

    	return $(this).parent("div.betterTip").length == 0;

    })

    .hover(function(){BT_hoverIn(this)}, function(){BT_hoverOut(this)})

	.click(function(){return false});	

}



function BT_setOptions(hash)

{

	if(hash["openWait"] != null)

		BT_open_wait = hash["openWait"];

	if(hash["closeWait"] != null)

		BT_close_wait = hash["closeWait"];

	if(hash["cacheEnabled"] != null)

		BT_cache_enabled = hash["cacheEnabled"];

}



function BT_hoverIn(a)

{

	var timeout = BT_open_wait;

	

	if($('#BT_cache_'+a.id).length > 0)

		timeout = 0;

	

	var title = a.title;

	

	if(!BT_titles[a.id])

	{

		if(!title || title.toLowerCase() == "$none")

			title = "";

		else if(title.toLowerCase() == "$content")

			title = $(a).text();

		

		BT_titles[a.id] = title;

		a.title = "";

	}

		

	BT_events[a.id] = 1;

	setTimeout(function(){BT_show(a.id)}, BT_open_wait);

}



function BT_hoverOut(a)

{

	BT_events[a.id] = 0;

	setTimeout(function(){BT_remove();});//, BT_close_wait

}



function BT_remove()

{

	$('#BT').remove();

}



function BT_show(id) {



	if(BT_events[id] == 0)

		return;

	

	var obj = $("#"+id);

	var url = obj[0].href;

	var title = BT_titles[id];

	

	$("#BT").remove();



	var parents = $("#"+id).parent("div.betterTip");

	

	if(parents.length > 0)

		id = $("#"+id).parent("div.betterTip")[0].id;



	obj = $("#"+id);

	

	var showTitle = true;



	if(title.length == 0)

		showTitle = false;

	

	var urlParts = url.split("\?", 2);

	var query = BT_parseQuery(urlParts[1]);

	urlParts[0] = urlParts[0].substr(urlParts[0].lastIndexOf('/')+1);

	

	if(!query["width"] || query["width"].length == 0)

		query["width"] = 250;

	

	var tipWidth = parseInt(query["width"]);

	

	var act_left = BT_getLeft(id);

	var act_width = BT_getWidth(id);

				

	var left = act_left + act_width + 12;

	var top = BT_getTop(id);

	

	var arrowDir = "left";

	

	var docWidth = self.innerWidth || (document.documentElement&&document.documentElement.clientWidth) || document.body.clientWidth;

	var right = act_left + act_width + 11 + tipWidth + 20;

	var arrowLeft = -10;

	var arrowTop = -3;

	var shadowTop = -7;

	var shadowLeft = -7;



	if(docWidth < right)

	{

		arrowDir = "right";

		left = act_left - 12 - tipWidth;

		arrowLeft = tipWidth;

		arrowTop = -1;

		

		if(document.all)

			arrowLeft -= 2;

	}

	else if(showTitle)

		arrowTop = -2;

	

	if(showTitle)

		arrowDir = "title_" +arrowDir;

	

	$("body").append(

		"<div id='BT' class='BT_shadow0' style='top:"+(top-shadowTop-8)+"px; left:"+(left-shadowLeft - 8)+"px;'>" +

		"<div class='BT_shadow1'>"+

		"<div class='BT_shadow2'>" +

		"<div id='BT_main' style='width:"+query["width"]+"px; top:"+shadowTop+"px; left:"+shadowLeft+"px;'>" +

			"<div id='BT_arrow_"+arrowDir+"' style='top: "+arrowTop+"px; left:"+arrowLeft+"px;'></div>" +

			(showTitle?"<div id='BT_title'>"+title+"</div>":"") +

			"<div style='padding:5px'>" +

				"<div id='BT_content'>" +

					"<div class='BT_loader'></div>" +

				"</div>" +

			"</div>"+

		"</div></div></div></div>");

	

	if(urlParts[0].charAt(0) == '$')

	{

		$('#BT_content').html($("#"+urlParts[0].substr(1)).html());

		$('#BT').show();

	}

	else if(BT_cache_enabled)

	{

		if($('#BT_cache_'+id).length > 0)

			BT_loadCache(id);

		else

			$.post(url, {}, function(data){

				BT_createCacheElement(id, data);

			});

	}

	else

	{

		$.post(url, {}, function(data){

			$('#BT_content').html(data);

			$('#BT').show();

		})

	}

}



function BT_createCacheElement(id, data)

{

	$("body").append("<div id='BT_cache_"+id+"' style='display:none'>"+

		data+"</div>");

	

	BT_loadCache(id);

}



function BT_loadCache(id)

{

	$('#BT_content').html($('#BT_cache_'+id).html());

	$('#BT').show();

}



function BT_getWidth(id) {

	var x = document.getElementById(id);

	return x.offsetWidth;

}



function BT_getLeft(id) {

	

	var obj = $('#'+id)[0];

	var left = obj.offsetLeft;

	var parent = obj.offsetParent;

	

	while(parent) {

		left += parent.offsetLeft;

		parent = parent.offsetParent;

	}

	

	return left

}



function BT_getTop(id) {

	var obj = $('#'+id)[0];

	var top = obj.offsetTop;

	var parent = obj.offsetParent;

	

	while(parent) {

		top += parent.offsetTop;

		parent = parent.offsetParent;

	}

	

	return top;

}



function BT_parseQuery ( query ) {

	

	var params = new Object ();

   

	if ( ! query ) 

		return params;

		

	var pairs = query.split(/[;&]/);

	

	for ( var i = 0; i < pairs.length; i++ ) {

		

		var kv = pairs[i].split('=');

		

		if ( ! kv || kv.length != 2 ) 

			continue;

			

		var key = unescape( kv[0] );	

		var val = unescape( kv[1] );

		

		val = val.replace(/\+/g, ' ');

		params[key] = val;

	}

	

	return params;

}