/*
	Outline rendering functions
	version: 1.2
	last modified 10-Oct-2002
	created by Marc Barrot, with help from Aaron Straup Cope, DJ Adams and Sjoerd Visscher
	copyright 2002 by Precision IT Management,Inc.
 	You may use and distribute this code freely,
	just keep this header information intact.
*/

var img_expanded  = 'http://radio.weblogs.com/0107145/gems/activeRenderer/ol3.gif';
var img_collapsed = 'http://radio.weblogs.com/0107145/gems/activeRenderer/ol2.gif';
var img_rotating = 'http://radio.weblogs.com/0107145/gems/activeRenderer/globe.gif';

new Image(15,15),src = img_expanded; // caching
new Image(15,15),src = img_collapsed; // caching
new Image(15,15),src = img_rotating; // caching

function expand(ioNode) {
	ioWedge = "i" + ioNode.substr(1);

	if (document.getElementById && document.getElementById(ioNode) != null) {
		document.getElementById(ioWedge).src=img_collapsed;
		document.getElementById(ioWedge).title='collapse';
		document.getElementById(ioNode).className='expanded';
	}
}

function collapse(ioNode) {
	ioWedge = "i" + ioNode.substr(1);

	if (document.getElementById && document.getElementById(ioNode) !=  null) {
		document.getElementById(ioWedge).src=img_expanded;
		document.getElementById(ioWedge).title='expand';
		document.getElementById(ioNode).className='collapsed';
	}
}

function ioSwitch(ioNode) {

	if (document.getElementById && document.getElementById(ioNode) !=  null) {
		nodeState = document.getElementById(ioNode).className;
	}

    if (nodeState == 'collapsed') {
		expand(ioNode);
	}

	else {
		collapse(ioNode);
	}
}

function expandAll(divName) {

	if (document.getElementsByTagName) {
		nodeList = document.getElementsByTagName('div');

		for (var i = 0; i < nodeList.length; i++) {
	
			if (nodeList.item(i).getAttribute('name') == divName) {
				expand(nodeList.item(i).id);	
			}
		}
	}

	else {
		alert ("Sorry, don't know how to make this run in your browser.");
	}
}

function collapseAll(divName) {

	if (document.getElementsByTagName) {
		nodeList = document.getElementsByTagName('div');

		for (var i = 0; i < nodeList.length; i++) {
	
			if (nodeList.item(i).getAttribute('name') == divName) {
				collapse(nodeList.item(i).id);
			}
		}
	}

	else {
		alert ("Sorry, don't know how to make this run in your browser.");
	}
}

function normalizeAll(spanName) {

	if (document.getElementsByTagName) {
		nodeList = document.getElementsByTagName('span');

		for (var i = 0; i < nodeList.length; i++) {
	
			if (nodeList.item(i).getAttribute('name') == spanName) {
				nodeList.item(i).style.fontWeight = 'normal';
			}
		}
	}

	else {
		alert ("Sorry, don't know how to make this run in your browser.");
	}
}

function expandBold(ioNode) {
	ioWedge = "i" + ioNode.substr(1);
	ioTitle = "t" + ioNode.substr(1);

	if (document.getElementById && document.getElementById(ioNode) != null) {
		document.getElementById(ioWedge).src=img_collapsed;
		document.getElementById(ioWedge).title='collapse';
		document.getElementById(ioNode).className='expanded';
		document.getElementById(ioTitle).style.fontWeight = 'bold';
	}
}

function expandByDate(n) {

	if (n.nodeType == 1) {

		if (n.tagName.toLowerCase() == 'div') {

			if (n.getAttribute('name') == 'item') {
				expandBold(n.id);
			}
		}
	}

	var children = n.childNodes;

	for (var i=0; i < children.length; i++ ) {
		expandByDate(children[i]);
	}
}

function daySwitch(postDate) {

	var hasItems = 0;

	if (document.getElementsByTagName) {
		nodeList = document.getElementsByTagName('span');

		for (var i = 0; i < nodeList.length; i++) {
	
			if (nodeList.item(i).getAttribute('name') == 'itemTitle') {
				hasItems = 1;
				break;
			}
		}
	}
	
	if (hasItems) {
		collapseAll('item');
		normalizeAll('itemTitle');

		if (document.getElementById) {
			expandByDate(document.getElementById(postDate));
		}
	}

	else {
		collapseAll('day');
		ioSwitch(postDate);
	}
}

var targetNode;
var targetRoot;

function transclude(ioNode, url) {

	var serverUrl = 'http://www.w3.org/2000/06/webdata/xslt';
	var xsltUrl = 'http://radio.weblogs.com/0107145/gems/activeRenderer/outliner_js_xsl.txt';
	var xsltUrl2 = 'http://radio.weblogs.com/0107145/gems/activeRenderer/outliner_xsl.txt';

	var renderRequest = serverUrl + '?xslfile=' + xsltUrl + '&xmlfile=' + url + '&transform=Submit';
	var renderRequest2 = serverUrl + '?xslfile=' + xsltUrl2 + '&xmlfile=' + url + '&transform=Submit';
	var ioWedge = "i" + ioNode.substr(1);
	var ioRoot = "r" + ioNode.substr(1);
	var ioTitle = "t" + ioNode.substr(1);

	if (document.getElementById ) {

		// create buffer if needed

		if (! document.getElementById ('buffer')) { // if buffer does not already exist
			var buffer = document.createElement('div');
			buffer.setAttribute ('id', 'buffer');
			document.body.appendChild (buffer); // add buffer as last element of body
		}

		// test for Mac MSIE

		var macMSIE = navigator.userAgent.search (/MSIE.*Mac/i) + 1;

		if (macMSIE) {

			// open new window for transcluded content

			var xAnchor = screen.width - (640 + 20);
			var yAnchor = 5;
			var xWidth = 640;
			var yHeight = 400;			
			window.open (renderRequest2, 'Related', 'width=' + xWidth + ', left=' + xAnchor + ', height=' + yHeight + ', top=' + yAnchor);

		} else {

			// expand node

			var imgNode = document.getElementById (ioWedge); // wedge image node
			var rootNode = document.getElementById (ioRoot); // embedding div node
			var spanNode = document.getElementById (ioTitle); // title span node
			var title = spanNode.firstChild.firstChild.data;
			var newTitle = document.createTextNode (title);
			var expandedNode = document.createElement ('div');
			expandedNode.setAttribute ('name', 'active');
			expandedNode.setAttribute ('class', 'expanded');
			expandedNode.setAttribute ('id', ioNode);
			expandedNode.style.marginLeft = '15px';
			imgNode.src = img_rotating;
			imgNode.title = 'loading';
			imgNode.parentNode.setAttribute ('href', 'javascript:ioSwitch(\'' + ioNode + '\')');
			spanNode.removeChild (spanNode.firstChild);
			spanNode.appendChild (newTitle);
			rootNode.appendChild (expandedNode);
			targetNode = expandedNode;
			targetRoot = imgNode;
		
			// load buffer with rendered outline script

			var theEl=document.createElement('script');
			theEl.src = renderRequest;
			document.getElementById('buffer').appendChild(theEl);
		}
	}
}

function retrieveHtml(s) {

	// clean-up entity encoded HTML

	s = s.replace (/&lt;/g, '<');
	s = s.replace (/&gt;/g, '>');
	s = s.replace (/&amp;/g, '&');

	// generate random key

	var rnd = Math.random();
	var rnd_key = String (rnd).substr(1,6);
	s = s.replace (/(id="[rpti][^"][^"]*)/g, '$1' + rnd_key);
	s = s.replace (/(\('p[^'][^']*)/g, '$1' + rnd_key);

	// insert transcluded HTML

	targetNode.innerHTML = s;
	targetRoot.src = img_collapsed;
	targetRoot.title = 'collapse';
}