function findSeparator(class_){
  $('.'+class_+' .separator').hide(300);
  $('.'+class_+' .ParentBlock img').attr('src','design/down_closed.gif');
}
function showMenu(ob,class_){
  $('.'+class_+' #'+ob.id+'-separator').slideDown(300);
  $('.'+class_+' #'+ob.id+'.ParentBlock img').attr('src','design/down_opened.gif');
}
function hideMenu(ob,class_){
  $('.'+class_+' #'+ob.id+'-separator').slideUp(300);
  $('.'+class_+' #'+ob.id+'.ParentBlock img').attr('src','design/down_closed.gif');
}
  $(document).ready(function(){
    jQuery('.ParentBlock').click(function(){
	  var parentClass=this.parentNode.className;
	  findSeparator(parentClass);
	  if($('.'+parentClass+' #'+this.id+'-separator').is(':hidden')){
	    showMenu(this,parentClass);}
	  else hideMenu(this,parentClass);
	});
  });