function toggleList(category){
var catlist=document.getElementById('catlist');
closeList(catlist,category);
var catList=catlist.getElementsByTagName('div');
for(var i=0;i<catList.length;i++){
var el=catList[i];
if(el.className == category){
if(el.style.display == 'none'){
el.style.display = 'block';}else{
el.style.display = 'none';}}
}
}

function closeList(container,category){
var aList=container.getElementsByTagName('div');
for(var i=0;i<aList.length;i++){
if(aList[i].className == category){continue;}
if(aList[i].className == 'main_link'){continue;}
aList[i].style.display='none';
}
}

function getQueryVariable(variable){
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i=0;i<vars.length;i++){
var pair = vars[i].split("=");
if (pair[0] == variable){
return pair[1];
}} 
return '';
}

function setList(){
var category=getQueryVariable('category');
category=escape(category);
toggleList(category);
}

function logOutRegistry(){
document.cookie="registry_id=; path=/";
document.cookie="registry_order=; path=/";
document.cookie="registry_name=; path=/";
location.href='/cgi-bin/shop.pl?registry_id=&registry_name=';
}