function MFCcategoryListToggle(id) {
    var baseUrl='/w/extensions/MFCcategoryList';
    var current;
    if (document.layers)
	{
	    current = (document.layers['div'+id].display == 'none') ? 'block' : 'none';
	    document.layers['div'+id].display = current;
	    if(current=='none') {
		document.images['picOpen'+id].src=baseUrl+'/nolines_plus.gif';
		document.images['picFld'+id].src=baseUrl+'/folder.gif';
	    } else {
		document.images['picOpen'+id].src=baseUrl+'/nolines_minus.gif';
		document.images['picFld'+id].src=baseUrl+'/folderopen.gif';
	    }
	}
    else if (document.all)
	{
	    current = (document.all['div'+id].style.display == 'none') ? 'block' : 'none';
	    document.all['div'+id].style.display = current;
	    if(current=='none') {
		document.all['picOpen'+id].src=baseUrl+'/nolines_plus.gif';
		document.all['picFld'+id].src=baseUrl+'/folder.gif';
	    } else {
		document.all['picOpen'+id].src=baseUrl+'/nolines_minus.gif';
		document.all['picFld'+id].src=baseUrl+'/folderopen.gif';
	    }
	}
    else if (document.getElementById)
	{
	    current = (document.getElementById('div'+id).style.display == 'none') ? 'block' : 'none';
	    document.getElementById('div'+id).style.display = current;
	    if(current=='none') {
		document.getElementById('picOpen'+id).src=baseUrl+'/nolines_plus.gif';
		document.getElementById('picFld'+id).src=baseUrl+'/folder.gif';
	    } else {
		document.getElementById('picOpen'+id).src=baseUrl+'/nolines_minus.gif';
		document.getElementById('picFld'+id).src=baseUrl+'/folderopen.gif';
	    }
	}
}