function expander(a){
	var obj=document.getElementById(a).style;
	obj.display=(obj.display =="none")?"":"none";
}


function openMenu(id, root) {
    var al="al"+id;
    var ul="ul"+id;
    var img='img'+id;
    al=document.getElementById(al);
    ul=document.getElementById(ul);
    img=document.getElementById(img);
    img.src=(ul.style.display == "none")?root+'img/btn/icon_expanded.gif':root+'img/btn/icon_collapsed.gif';
    ul.style.display=(ul.style.display == "none")?"":"none";
}    

function openCat(id) {
document.location="index.php?categoryid="+id;
}