function showDropDown(id, obj) {
    var allDrops = $$("div.drop_down_containerActive");
    for (var i = 0; i < allDrops.length; i++) {
        allDrops[i].className = allDrops[i].className.replace(/Active/, "");
    }
	if (id) {
	    var showDrop = document.getElementById(id);
	    if (showDrop) { showDrop.className += "Active";}
    }
    var activeBut = $$("#products_by_category a.active");
    for (var i = 0; i < activeBut.length; i++) { activeBut[i].className = ""; }
    if (obj) {obj.className = "active";}
}

window.onDomReady(function()
{
    showDropDown("blankDropdown");
});