function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else
		begin += 2;
	var end = document.cookie.indexOf(";", begin);
	if (end == -1)
		end = dc.length;
	return unescape(dc.substring(begin + prefix.length, end));
}

var req;
function loadXMLDoc(url) {
 // branch for native XMLHttpRequest object
 if (window.XMLHttpRequest) {
   req = new XMLHttpRequest();
   req.onreadystatechange = processReqChange;
   req.open("GET", url, true);
   req.send(null);
 } else if (window.ActiveXObject) {
   req = new ActiveXObject("Microsoft.XMLHTTP");
   if (req) {
	 req.onreadystatechange = processReqChange;
	 req.open("GET", url, true);
	 req.send();
   }
 }
}

function processReqChange() {
  if (req.readyState == 4) {
	// only if "OK"
	if (req.status == 200) {
	  cats = req.responseXML.documentElement;
	  msg = cats.getElementsByTagName('msg')[0].firstChild.data;
	  taxid = cats.getElementsByTagName('taxid')[0].firstChild.data;
	  // Change HTML
	  mdiv = document.getElementById('ci' + taxid)
	  mdiv.innerHTML = msg;
	}
  }
}

var lastpop = 0;
var lastpop2 = 0;

function findPosition( oLink ) {
	if( oLink.offsetParent ) {
		for( var posX = 0, posY = 0; oLink.offsetParent; oLink = oLink.offsetParent ) {
			posX += oLink.offsetLeft;
			posY += oLink.offsetTop;
		}
		return [ posX, posY ];
	} else {
		return [ oLink.x, oLink.y ];
	}
}

function CatPop(taxid, e, offx, offy, l, right)
{
  if(l == 2)
  {
		if(lastpop)
			closePop(lastpop);
		lastpop = taxid
  }
  else if(l == 3)
  {
		if(lastpop2)
			closePop(lastpop2)
		lastpop2 = taxid
  }
  
  if (window.event && window.event.srcElement) {
	lnk = window.event.srcElement
  } else if (e && e.target) {
	lnk = e.target
  }
  
  pos = findPosition(lnk);
  xpos = pos[0];
  ypos = pos[1];
 
  fr = document.getElementById('frame');
  
  fpos = findPosition(fr);
  xfpos = fpos[0];
  yfpos = fpos[1];
  pop = document.getElementById('c' + taxid);

	if(right)
	{  
	  pop.style.top = (ypos - yfpos + offy) + 'px';
  	pop.style.left = (xpos - xfpos + offx)+ 'px';
	}
	else
	{
		pop.style.top = (ypos - yfpos + offy) + 'px';
		if(offx == 0)
		pop.style.left = abs(xpos - xfpos - offx - 100)+ 'px';
		else
			pop.style.left = abs(xpos - xfpos + offx - 300) + 'px';
	}

  pop.style.display = 'block';

  // Don't refetch
  if (!pop.className.match(/popped/)) {
	pop.className += ' popped';
	st_popup(taxid)
  }
}

function closePop(taxid)
{
  d = document.getElementById('c' + taxid)
  d.style.display = 'none'; 
  if(taxid == lastpop)
  {
		if(lastpop2)
		{
			d = document.getElementById('c' + lastpop2)
	 		d.style.display = 'none';
			lastpop2 = 0
		}
		d = document.getElementById('c' + lastpop)
		d.style.display = 'none';
  	lastpop = 0
  }
	else if(taxid == lastpop2)
	{
		d = document.getElementById('c' + lastpop2)
		d.style.display = 'none';
		lastpop2 = 0
	}
}
function st_popup(taxid) {
	loadXMLDoc('http://www.pcworld.idg.com.au//th.php?taxid=' + taxid);
}

function abs(n)
{
	if(n < 0)
		return -n;
	return n;
}

// Types
// 1 = c , categories
// 2 = d , manufacturers
// 3 = b , buying guides
var type;
var lastpopType;
var lastpop2Type;

var menuid = new Array();
menuid[1] = "c";
menuid[2] = "d";
menuid[3] = "b";

function MenuPop(id, e, offx, offy, l, right, t)
{ 
  type = menuid[t] 

  if(l == 2)
  {
		if(lastpop)
			closePopMenu(lastpop,t);
		lastpop = id
		lastpopType = t
  }
  else if(l == 3)
  {
		if(lastpop2)
			closePopMenu(lastpop2,t)
		lastpop2 = id
		lastpop2Type = t
  }

  if (window.event && window.event.srcElement) {
	lnk = window.event.srcElement
  } else if (e && e.target) {
	lnk = e.target
  }

  pos = findPosition(lnk);
  xpos = pos[0];
  ypos = pos[1];

  fr = document.getElementById('frame');

  fpos = findPosition(fr);
  xfpos = fpos[0];
  yfpos = fpos[1];
  pop = document.getElementById(type + id);

	if(right)
	{
	  pop.style.top = (ypos - yfpos + offy) + 'px';
	pop.style.left = (xpos - xfpos + offx)+ 'px';
	}
	else
	{
		pop.style.top = (ypos - yfpos + offy) + 'px';
		if(offx == 0)
		pop.style.left = abs(xpos - xfpos - offx - 100)+ 'px';
		else
			pop.style.left = abs(xpos - xfpos + offx - 300) + 'px';
	}

  pop.style.display = 'block';

  // Don't refetch
  if (!pop.className.match(/popped/)) {
	pop.className += ' popped';
	st_menupopup(id)
  }
}

function st_menupopup(id) {
	
	if(type == "d")
		loadXMLDocMenu('http://www.pcworld.idg.com.au//thmanu.php?id=' + id);
	else if(type == "c")
		loadXMLDocMenu('http://www.pcworld.idg.com.au//th.php?taxid=' + id);
	else if(type == "b")
		loadXMLDocMenu('http://www.pcworld.idg.com.au//thmanu.php?id=' + id);

}


function loadXMLDocMenu(url) {
 // branch for native XMLHttpRequest object
 if (window.XMLHttpRequest) {
   req = new XMLHttpRequest();
   req.onreadystatechange = processReqChangeMenu;
   req.open("GET", url, true);
   req.send(null);
 } else if (window.ActiveXObject) {
   req = new ActiveXObject("Microsoft.XMLHTTP");
   if (req) {
	 req.onreadystatechange = processReqChangeMenu;
	 req.open("GET", url, true);
	 req.send();
   }
 }
}

function processReqChangeMenu() {
  if (req.readyState == 4) {
	// only if "OK"
	if (req.status == 200) {
	  cats = req.responseXML.documentElement;
	  msg = cats.getElementsByTagName('msg')[0].firstChild.data;
	  id = cats.getElementsByTagName('id')[0].firstChild.data;
	  // Change HTML
	  mdiv = document.getElementById(type + 'i' + id)
	  mdiv.innerHTML = msg;
	}
  }
}


function closePopMenu(id,t)
{
  typePop = menuid[lastpopType];
  typePop2 = menuid[lastpop2Type];
  type = menuid[t];
  d = document.getElementById(type + id)
  d.style.display = 'none';
  if(id == lastpop)
  {
		if(lastpop2)
		{
			d = document.getElementById(typePop2 + lastpop2)
			d.style.display = 'none';	
			lastpop2 = 0
		}
		d = document.getElementById(typePop + lastpop)
		d.style.display = 'none';
	lastpop = 0
  }
	else if(id == lastpop2)
	{
		d = document.getElementById(typePop2 + lastpop2)
		d.style.display = 'none';
		lastpop2 = 0
	}
}


/*'*/
function fix_expad_hidesel() {
	selectbox = document.getElementById('search_select');
	selectbox.style.visibility= 'hidden';
}

function fix_expad_showsel() {
	selectbox = document.getElementById('search_select');
	selectbox.style.visibility= 'visible';
}