function menu(aid, id) {
    var item = null;
	var aitem = null;
    if (document.getElementById) {
        item = document.getElementById(id);
		aitem = document.getElementById(aid);
    }
    else if (document.all) {
        item = document.all[id];
        aitem = document.all[aid];
    }
    else if (document.layers) {
        item = document.layers[id];
		aitem = document.layers[aid];
    }
    if (!item) {
    }
    else if (item.style) {
        if (item.style.display == "none") {
            item.style.display = "";
            aitem.className = "nav_a";
        }
        else {
            item.style.display = "none";
            aitem.className = "nav";
        }
    }
    else {
        item.visibility = "show";
        aitem.className = "nav";
    }
}
function ShowHide(id) {
    var item = null;
    if (document.getElementById) {
        item = document.getElementById(id);
    }
    else if (document.all) {
        item = document.all[id];
    }
    else if (document.layers) {
        item = document.layers[id];
    }
    if (!item) {
    }
    else if (item.style) {
        if (item.style.display == "none") {
            item.style.display = "";

        }
        else {
            item.style.display = "none";
        }
    }
    else {
        item.visibility = "show";
    }
}

function menu2(eImg, id) {
    var item = null;
    if (document.getElementById) {
        item = document.getElementById(id);
    }
    else if (document.all) {
        item = document.all[id];
    }
    else if (document.layers) {
        item = document.layers[id];
    }
    if (!item) {
    }
    else if (item.style) {
        if (item.style.display == "none") {
            item.style.display = "";
            document.images[eImg].src="images/arrow_on.gif";
        }
        else {
            item.style.display = "none";
            document.images[eImg].src="images/arrow.gif";
        }
    }
    else {
        item.visibility = "show";
        document.images[eImg].src="images/arrow_on.gif";
    }
}
function ShowHide(id) {
    var item = null;
    if (document.getElementById) {
        item = document.getElementById(id);
    }
    else if (document.all) {
        item = document.all[id];
    }
    else if (document.layers) {
        item = document.layers[id];
    }
    if (!item) {
    }
    else if (item.style) {
        if (item.style.display == "none") {
            item.style.display = "";

        }
        else {
            item.style.display = "none";
        }
    }
    else {
        item.visibility = "show";
    }
}