function applyFilter(active_filter, lnk_id){
    document.getElementById('filter_brand').style.visibility = 'hidden';
    document.getElementById('filter_brand').style.display = 'none';
    document.getElementById('filter_category').style.visibility = 'hidden';
    document.getElementById('filter_category').style.display = 'none';
    document.getElementById('filter_price').style.visibility = 'hidden';
    document.getElementById('filter_price').style.display = 'none';
    document.getElementById('lnk_brand').style.backgroundColor = '#d6d6da';
    document.getElementById('lnk_category').style.backgroundColor = '#d6d6da';
    document.getElementById('lnk_price').style.backgroundColor = '#d6d6da';
    
    //alert(active_filter);
    document.getElementById(lnk_id).style.backgroundColor = '#b4b4ba';
    document.getElementById(active_filter).style.display = 'inline-block';
    document.getElementById(active_filter).style.visibility = 'visible';
    
}
function loadFilter(filterBy){
//alert(filterBy);
        document.getElementById('filter_brand').style.visibility = 'hidden';
        document.getElementById('filter_brand').style.display = 'none';
        document.getElementById('filter_category').style.visibility = 'hidden';
        document.getElementById('filter_category').style.display = 'none';
        document.getElementById('filter_price').style.visibility = 'hidden';
        document.getElementById('filter_price').style.display = 'none';
        document.getElementById('lnk_brand').style.backgroundColor = '#d6d6da';
        document.getElementById('lnk_category').style.backgroundColor = '#d6d6da';
        document.getElementById('lnk_price').style.backgroundColor = '#d6d6da';
        
        switch (filterBy){
            case "byBrand":
                lnk_id = 'lnk_brand';
                active_filter = 'filter_brand';
                break;
            case "byCategory":
                lnk_id = 'lnk_category';
                active_filter = 'filter_category';
                break; 
            case "byPrice":
                lnk_id = 'lnk_price';
                active_filter = 'filter_price';
                break; 
            default:
                lnk_id = '';
                active_filter = '';
                break; 
        }
        
        document.getElementById(lnk_id).style.backgroundColor = '#b4b4ba';
        document.getElementById(active_filter).style.display = 'inline-block';
        document.getElementById(active_filter).style.visibility = 'visible';

    }

    function MM_swapImgRestore() { //v3.0
        var i, x, a = document.MM_sr; for (i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++) x.src = x.oSrc;
    }

    function MM_preloadImages() { //v3.0
        var d = document; if (d.images) {
            if (!d.MM_p) d.MM_p = new Array();
            var i, j = d.MM_p.length, a = MM_preloadImages.arguments; for (i = 0; i < a.length; i++)
                if (a[i].indexOf("#") != 0) { d.MM_p[j] = new Image; d.MM_p[j++].src = a[i]; } 
        }
    }

    function MM_findObj(n, d) { //v4.01
        var p, i, x; if (!d) d = document; if ((p = n.indexOf("?")) > 0 && parent.frames.length) {
            d = parent.frames[n.substring(p + 1)].document; n = n.substring(0, p);
        }
        if (!(x = d[n]) && d.all) x = d.all[n]; for (i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
        for (i = 0; !x && d.layers && i < d.layers.length; i++) x = MM_findObj(n, d.layers[i].document);
        if (!x && d.getElementById) x = d.getElementById(n); return x;
    }

    function MM_swapImage() { //v3.0
        var i, j = 0, x, a = MM_swapImage.arguments; document.MM_sr = new Array; for (i = 0; i < (a.length - 2); i += 3)
            if ((x = MM_findObj(a[i])) != null) { document.MM_sr[j++] = x; if (!x.oSrc) x.oSrc = x.src; x.src = a[i + 2]; }
    }

    function MM_showHideLayers() { //v6.0
        var i, p, v, obj, args = MM_showHideLayers.arguments;
        for (i = 0; i < (args.length - 2); i += 3) if ((obj = MM_findObj(args[i])) != null) {
            v = args[i + 2];
            if (obj.style) { obj = obj.style; v = (v == 'show') ? 'visible' : (v == 'hide') ? 'hidden' : v; }
            obj.visibility = v;
        }
    }

    function MM_openBrWindow(theURL, winName, features) { //v2.0  
        window.open(theURL, winName, features);
        return false;
    }