toggle = function(id){
 var backs=arguments[1];
 obj=document.getElementById(id);
 if(obj){
  if(obj.style.display=='none'){
   obj.style.display='block';
  }else{
   obj.style.display='none';
  }
 }else{
  document.location='/?toggle='+id+(backs?'&back='+backs:'');
 }
} 


getElementbyClass = function(obj,cclass) {
	if(obj.hasChildNodes()) {
		var nodes=obj.childNodes.length;
		for(var i=0; i<nodes; i++){
   if(obj.childNodes[i].className==cclass){
    retobj=obj.childNodes[i];
    break;
   }
			getElementbyClass(obj.childNodes[i],cclass);
	 }
  return retobj;
 }
}

function club(id){
 elem=document.getElementById('clubNav');
 elem=getElementbyClass(elem,'active');
 ids=elem.id;
 ids=ids.substring(1);
 elem.className='';
 elem=document.getElementById('i'+id);
 elem.className='active';
 if(document.getElementById('h'+ids)){
 	descr = document.getElementById('h'+ids);
 	descr.style.display='none';
 }
 if(document.getElementById('h'+id)){
 	descr=document.getElementById('h'+id);
 	descr.style.display='block';
 }
 tech=document.getElementById('t'+ids);
 tech.style.display='none';
 tech=document.getElementById('t'+id);
 tech.style.display='block';
 gal=document.getElementById('g'+ids);
 gal.style.display='none';
 gal=document.getElementById('g'+id);
 gal.style.display='block';
 gal=document.getElementById('gl'+ids);
 gal.style.display='none';
 gal=document.getElementById('gl'+id);
 gal.style.display='inline';
}