/*
 * FlashObject embed
 * http://blog.deconcept.com/2004/10/14/web-standards-compliant-javascript-flash-detect-and-embed/
 *
 * by Geoff Stearns (geoff@deconcept.com, http://www.deconcept.com/)
 *
 * v1.0.7 - 11-17-2004
 *
 * Create and write a flash movie to the page, includes detection
 *
 * Usage:
 *
 *	myFlash = new FlashObject("path/to/swf.swf", "swfid", "width", "height", flashversion, "backgroundcolor");
 *	myFlash.altTxt = "Upgrade your Flash Player!";                // optional
 *	myFlash.addParam("wmode", "transparent");                     // optional
 *	myFlash.addVariable("varname1", "varvalue");                  // optional
 *	myFlash.addVariable("varname2", getQueryParamValue("myvar")); // optional
 *	myFlash.write();
 *
 */
FlashObject = function(swf, id, w, h, ver, c) {
	this.swf = swf;
	this.id = id;
	this.width = w;
	this.height = h;
	this.version = ver || 6; // default to 6
	this.align = "middle"; // default to middle
	this.redirect = "";
	this.sq = document.location.search.split("?")[1] || "";
	this.altTxt = "Please <a href='http://www.macromedia.com/go/getflashplayer'>upgrade your Flash Player</a>.";
	this.bypassTxt = "<p>Already have Flash Player? <a href='?detectflash=false&"+ this.sq +"'>Click here if you have Flash Player "+ this.version +" installed</a>.</p>";
	this.params = new Object();
	this.variables = new Object();
	if (c) this.color = this.addParam('bgcolor', c);
	this.addParam('quality', 'high'); // default to high
	this.doDetect = getQueryParamValue('detectflash');
}
FlashObject.prototype.addParam = function(name, value) {
	this.params[name] = value;
}
FlashObject.prototype.getParams = function() {
    return this.params;
}
FlashObject.prototype.getParam = function(name) {
    return this.params[name];
}
FlashObject.prototype.addVariable = function(name, value) {
	this.variables[name] = value;
}
FlashObject.prototype.getVariable = function(name) {
    return this.variables[name];
}
FlashObject.prototype.getVariables = function() {
    return this.variables;
}
FlashObject.prototype.getParamTags = function() {
    var paramTags = "";
    for (var param in this.getParams()) {
        paramTags += '<param name="' + param + '" value="' + this.getParam(param) + '" />';
    }
    if (paramTags == "") {
        paramTags = null;
    }
    return paramTags;
}
FlashObject.prototype.getHTML = function() {
    var flashHTML = "";
    if (window.ActiveXObject && navigator.userAgent.indexOf('Mac') == -1) { // PC IE
        flashHTML += '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="' + this.width + '" height="' + this.height + '" id="' + this.id + '" align="' + this.align + '">';
        flashHTML += '<param name="movie" value="' + this.swf + '" />';
        if (this.getParamTags() != null) {
            flashHTML += this.getParamTags();
        }
        if (this.getVariablePairs() != null) {
            flashHTML += '<param name="flashVars" value="' + this.getVariablePairs() + '" />';
        }
        flashHTML += '</object>';
    }
    else { // Everyone else
        flashHTML += '<embed type="application/x-shockwave-flash" src="' + this.swf + '" width="' + this.width + '" height="' + this.height + '" id="' + this.id + '" align="' + this.align + '"';
        for (var param in this.getParams()) {
            flashHTML += ' ' + param + '="' + this.getParam(param) + '"';
        }
        if (this.getVariablePairs() != null) {
            flashHTML += ' flashVars="' + this.getVariablePairs() + '"';
        }
        flashHTML += '></embed>';
    }
    return flashHTML;	
}
FlashObject.prototype.getVariablePairs = function() {
    var variablePairs = new Array();
    for (var name in this.getVariables()) {
        variablePairs.push(name + "=" + escape(this.getVariable(name)));
    }
    if (variablePairs.length > 0) {
        return variablePairs.join("&");
    }
    else {
        return null;
    }
}
FlashObject.prototype.write = function(elementId) {
	if(detectFlash(this.version) || this.doDetect=='false') {
		if (elementId) {
			document.getElementById(elementId).innerHTML = this.getHTML();
		} else {
			document.write(this.getHTML());
		}
	} else {
		if (this.redirect != "") {
			document.location.replace(this.redirect);
		} else {
			if (elementId) {
				document.getElementById(elementId).innerHTML = this.altTxt +""+ this.bypassTxt;
			} else {
				document.write(this.altTxt +""+ this.bypassTxt);
			}
		}
	}		
}
function getFlashVersion() {
	var flashversion = 0;
	if (navigator.plugins && navigator.plugins.length) {
		var x = navigator.plugins["Shockwave Flash"];
		if(x){
			if (x.description) {
				var y = x.description;
	   			flashversion = y.charAt(y.indexOf('.')-1);
			}
		}
	} else {
		result = false;
	    for(var i = 15; i >= 3 && result != true; i--){
   			execScript('on error resume next: result = IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.'+i+'"))','VBScript');
   			flashversion = i;
   		}
	}
	return flashversion;
}
function detectFlash(ver) {	
	if (getFlashVersion() >= ver) {
		return true;
	} else {
		return false;
	}
}
// get value of querystring param
function getQueryParamValue(param) {
	var q = document.location.search;
	var detectIndex = q.indexOf(param);
	var endIndex = (q.indexOf("&", detectIndex) != -1) ? q.indexOf("&", detectIndex) : q.length;
	if(q.length > 1 && detectIndex != -1) {
		return q.substring(q.indexOf("=", detectIndex)+1, endIndex);
	} else {
		return "";
	}
}
/* add Array.push if needed */
if(Array.prototype.push == null){
	Array.prototype.push = function(item){
		this[this.length] = item;
		return this.length;
	}
}
function insertLogo()
	{
	var ident = document.getElementById('ident');
	if (detectFlash(60))
		{
		var myFlashObject = new FlashObject("/wavemaster.internal/res/local/img/edt/logo.swf", "flash_logo", "1", "1", 6, "#ffffff");
		myFlashObject.addParam("wmode", "transparent");
		ident.innerHTML = '<div id="logo_container"></div>'+ident.innerHTML;
		ident.className = 'flashed_up';
		myFlashObject.write('logo_container');
		}
	else
		{
		var inner = ident.innerHTML.replace(/<h3>(.*)<\/h3>/i, "$1");
		ident.innerHTML = '<a href="http://www.stevenagehomes.org.uk" tabindex="1"><img src="/wavemaster.internal/res/local/img/edt/logo.gif" width="100%" alt="' + inner + '" /></a>';
		}
	}
function cornerify()
	{
	var news = document.getElementById('content_news');
	if (!news) { return; }
	var lis = news.getElementsByTagName('li');
	for (var i = 0; i < lis.length; i++)
		{
		insertCorners(lis[i]);
		}
	}
function insertCorners(element)
	{
	insertPositionedElements(element, ['rounded_tl', 'rounded_tr', 'rounded_bl', 'rounded_br']);
	}
function insertRightCorners(element)
	{
	insertPositionedElements(element, ['rounded_tr', 'rounded_br']);
	}
function insertBottomRightCorner(element)
	{
	insertPositionedElements(element, ['rounded_br']);
	}
function insertPositionedElements(element, list)
	{
	element = (typeof element == 'string') ? document.getElementById(element) : element;
	if (!element) { return; }
	for (var i in list)
		{
		element.innerHTML += '<div class="' + list[i] + '"></div>';
		}
	}
function insertFirstChildren()
	{
	addFirstChild('site_links');
	addFirstChild('legal');
	addFirstChildToThs();
	}
function addFirstChild(element, tag)
	{
	if (typeof(element) == 'string') { element = document.getElementById(element); }
	if (!element) { return; }
	if (!tag) { tag = 'li'; }
	var tags = element.getElementsByTagName(tag);
	if (tags[0])
		{
		tags[0].className = 'first_child';
		}
	}
function addFirstChildToThs()
	{
	var content = document.getElementById('content');
	if (!content) { return; }
	var tables = content.getElementsByTagName('table');
	var content_width = null;
	var em = null;
	if (document.body.currentStyle && (navigator.platform.indexOf('Mac') == -1))
		{
		content.innerHTML += '<div id="emsizer" style="width: 10em">emsizer</div>';
		var emsizer = document.getElementById('emsizer');
		em = emsizer.offsetWidth/10;
		// NB. content_width is hard-coded
		// could possibly be recovered programatically
		content_width = 23 * em;
		emsizer.parentNode.removeChild(emsizer);
		}
	for (var i = 0; i < tables.length; i++)
		{
		if (em)
			{
			var spacer_element = null
			if (tables[i].offsetWidth > content_width)
				{
				tables[i].className = 'JS_removefromflow';
				if (!spacer_element)
					{
					spacer_element = document.createElement('div');
					spacer_element.className = 'JS_flowspacer';
					}
				var insert_spacer = spacer_element.cloneNode(true);
				var after_table = null;
				var current_node = tables[i];
				while (current_node.nextSibling && !(after_table))
					{
					current_node = current_node.nextSibling;
					if (current_node.nodeType == 1)
						{
						after_table = current_node;
						}
					}
				if (after_table)
					{
					after_table.parentNode.insertBefore(insert_spacer, after_table);
					}
				else
					{
					content.appendChild(insert_spacer);
					}
				var flexi_height = tables[i].offsetHeight/em;
				insert_spacer.innerHTML = '<div style="width: 100px; height: ' + flexi_height + 'em;"></div>';
				}
			}
		var trs = tables[i].getElementsByTagName('tr');
		for (var j = 0; j < trs.length; j++)
			{
			var ths = trs[j].getElementsByTagName('th');
			if (ths.length && (ths.length<2))
				{
				if (j == 0) { return; }
				ths[0].className = 'first_child';
				}
			}
		}
	}
function registerDevNull()
	{
	var as = document.getElementsByTagName('a');
	for (var i in as)
		{
		as[i].onclick = checkDevNull;
		}
	}
	
function checkDevNull()
	{
	if (this.href.match(/\/dev\/null/)) { alert("This link is not active yet"); return false; }
	}
function initSite()
	{
	try
		{
		pageSeq();
		init();
		}
	catch(e) {}
	try
		{
		styleForm();
		}
	catch(e) {}
	//shuntSections()
	setFontSize();
	adjustContentFeatured();
	insertLogo();
	insertFirstChildren();
	cornerify();
	adjustSiteMap();
	registerDevNull();
	}
window.onload = initSite;

function adjustContentFeatured()
	{
	var tallest = 0;
	var content_featured = document.getElementById('content_featured');
	if (!content_featured) { return; }
	var lis = content_featured.getElementsByTagName('li');
	for (var i = 0; i < lis.length; i++)
		{
		if (i < 3)
			{
			lis[i].className = 'firstrow';
			}
		var y = lis[i].offsetHeight - 10;
		if (y > tallest) { tallest = y; };
		if (i%3 == 2)
			{
			lis[i].className += ' rightcol';
			lis[i].style.height = tallest + "px";
			lis[i-1].style.height = tallest + "px";
			lis[i-2].style.height = tallest + "px";
			tallest = 0;
			}
		else if (i%3 == 1)
			{
			lis[i].style.height = tallest + "px";
			lis[i-1].style.height = tallest + "px";
			}
		else if (i%3 == 0)
			{
			lis[i].className += ' firstcol';
			}
		}
	}
function styleForm()
	{
	if (document.getElementById("document")) { return; }
	moveButtons();
	insertGutters();
	removeEmptyCells();
	adjustInputs();
	}
function removeEmptyCells()
	{
	
	var tds = document.getElementsByTagName('td');
	var table_length = tds.length;
	for (var i = 0; i < table_length; i++)
		{
		var td = tds[table_length - i - 1];
		var td_inner = td.innerHTML;
		if (td_inner.match(/^\s*(&nbsp;)*\s*$/))
			{
			if (td.className == 'gutter')
				{
				td.innerHTML = '&nbsp;&nbsp;&nbsp;&nbsp;';
				continue;
				}
			td.parentNode.removeChild(td);
			}
		}
	}
function insertGutters()
	{
	var mainblock = null;
	var tables = document.getElementsByTagName('table');
	for (var i = 0; i < tables.length; i++)
		{
		if (tables[i].className == 'mainblock') { mainblock = tables[i]; }
		}
	if (!mainblock) { return; }
	mainblock.border = 0;
	var inner_table = mainblock.getElementsByTagName('table')[0];
	if (inner_table.getElementsByTagName('td')[0].className == 'ufspit')
		{
		inner_table = mainblock.getElementsByTagName('table')[1];
		}
	var inner_table_tr = inner_table.getElementsByTagName('tr')[0];
	var inner_cells = inner_table_tr.childNodes;
	var columns = 0;
	for (var z = 0; z < inner_cells.length; z++)
		{
		if (inner_cells[z].tagName)
			{
			if (inner_cells[z].tagName.toLowerCase() == 'td') { columns++; }
			}
		}
	if (columns < 2) { return; }
	var gutter_count = 0;
	for (var j = 0; j < columns; j++)
		{
		if (inner_cells[j].tagName.toLowerCase() == 'td')
			{
			var the_cell = inner_cells[j];
			the_cell.width = (100/columns)+'%';
			if (gutter_count)
				{
				var gutter = document.createElement('td');
				gutter.className = 'gutter';
				the_cell.parentNode.insertBefore(gutter, the_cell);
				}
			gutter_count++;
			}
		}
	}
function moveButtons()
	{
	var as = document.getElementsByTagName('a');
	var relevant_link = null
	for (var i = 0; i < as.length; i++)
		{
		if (as[i].href.match(/javascript:imageSubmit\("(nextpage|prevpage|commit)"/))
			{
			relevant_link = as[i];
			}
		}
	if (!relevant_link) { return; }
	
	while( relevant_link.tagName.toLowerCase() != 'tr' )
		{
		relevant_link = relevant_link.parentNode;
		if (relevant_link.tagName.toLowerCase() == 'body') { return; }
		}
	
	var tds = relevant_link.getElementsByTagName('td');
	var table_length = tds.length;
	var shift_buttons = '';
	for (var i = 0; i < table_length; i++)
		{
		var td = tds[i];
		if (td.innerHTML.match(/javascript:imageSubmit/))
			{
			shift_buttons += td.innerHTML;
			td.innerHTML = '&nbsp;';
			}
		if (i == table_length - 1)
			{
			shift_buttons = shift_buttons.replace(/\s*<\/*div[^>]*>/gi, '');
			shift_buttons = '<div>'+shift_buttons+'</div>';
			td.innerHTML = shift_buttons;
			td.id = 'progress_buttons';
			}
		}
	}
function adjustInputs()
	{
	var inputs = document.getElementsByTagName('input');
	for (var i = 0; i < inputs.length; i++)
		{
		var input = inputs[i];
		if (input.type != 'text') { continue; }
		if (input.id == 'keyword') { continue; }
		var add_width_class = input.size < 30 ? 'half_width' : 'full_width';
		input.className += ' ' + add_width_class;
		input.size = 10;
		}
	}
function isWinIE()
	{
	if (document.body.currentStyle && (navigator.platform.indexOf('Mac') == -1))
		{
		return true;
		}
	return false;
	}
function isMacIE()
	{
	if (document.body.currentStyle && (navigator.platform.indexOf('Mac') != -1))
		{
		return true;
		}
	return false;
	}
function adjustFontSize(mode)
	{
	if (!this.scale) { this.scale = 1; }
	var scaler = 0.9;
	if (mode == 'increase') { scaler = 1/scaler; }
	scale *= scaler;
	setFontSize(scale);
	createCookie('fontsize', scale, 10000);
	}
function setFontSize(size)
	{
	if (!size)
		{
		size = readCookie('fontsize');
		if (!size) { return; }
		}
	document.getElementsByTagName('body')[0].style.fontSize = size +'em';
	}
function createCookie(name, value, days)
	{
	if (days)
		{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
		}
	else
		{
		var expires = "";
		}
	document.cookie = name+"="+value+expires+"; path=/";
	}

function readCookie(name)
	{
	var ca = document.cookie.split(';');
	var nameEQ = name + "=";
	for(var i=0; i < ca.length; i++)
		{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1, c.length); //delete spaces
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
		}
	return null;
	}

function adjustSiteMap()
	{
	var sitemap = document.getElementById('sitemap');
	if (!sitemap) { return; }
	var sitemap_parent = sitemap.parentNode;
	sitemap_parent.removeChild(sitemap);
	var cols = 3;
	var counter = 0;
	var new_tr= null;
	var new_table = document.createElement('table');
	new_table.cellspacing = '8';
	//new_table.className = 'sitemap';
	sitemap_parent.appendChild(new_table);
	var potential_lis = sitemap.childNodes;
	var lis = new Array();
	for (var i = potential_lis.length - 1; i >= 0; i--)
		{
		if (potential_lis[i].tagName != 'LI') { continue; }
		lis.unshift(potential_lis[i]);
		}
	for (var i = 0; i < lis.length; i=0 )
		{
		var li = lis.shift();
		if (li.tagName != 'LI') { continue; }
		if (counter == 0)
			{
			new_tr = document.createElement('tr');
			new_table.appendChild(new_tr);
			}
		var new_td = document.createElement('td');
		new_tr.appendChild(new_td);
		new_td.appendChild(li);
		new_td.innerHTML = '<ul class="sitemap">'+new_td.innerHTML+'</ul>';
		counter++;
		if (counter == cols) { counter = 0; }
		}
		// because IE needs 'refreshing'
		var foo = content.innerHTML;
		content.innerHTML = '';
		content.innerHTML = foo;
	}