function swInfo(){
    var ib=document.getElementById('infobox');
    (ib.style.display=='none') ? ib.style.display='block' : ib.style.display='none';
}

function selAll(state){
    var filterDiv=document.getElementById('prodFilter');
    
    if (filterDiv.hasChildNodes())
     {
       var children = filterDiv.childNodes;
       for (var i = 0; i < children.length; i++) 
       {
                children[i].checked=state;
       }
     }
}