function nav_start() {

        if(!document.getElementById || !document.createTextNode) { return; }
        
        var elements = 'MENU-CATEGORY'.split('-');
        var elementIDs = new Array();
        var tagNames = 'LI-LI'.split('-');
        elementIDs[0] = 'navigationmenu';
elementIDs[1] = 'categorymenu';
        
        for(j = 0; j < elementIDs.length; j++) {
           var nodes = document.getElementById(elementIDs[j]).getElementsByTagName(tagNames[j]);
            
            for(i = 0; i < nodes.length; i++) {
                if(nodes[i].className != 'heading') {
                    nodes[i].onmouseover = function() {
                        this.className += ' down';
                    }
                    nodes[i].onmouseout = function() {
                        this.className = this.className.replace(/\s*down/, "");
                    }
                }
            }
        }
    }



function adHocAnchorDrop(anchor) {
    anchor.getElementsByTagName('LI')[0].className += ' down';
    //alert(anchor.getElementsByTagName('LI')[0].className + ' name');
}
function adHocAnchorOut(anchor) {
    anchor.getElementsByTagName('LI')[0].className = anchor.getElementsByTagName('LI')[0].className.replace(/\s*down/, "");
}