var a;
function menu_activ(a) {
       var obj = document.getElementById(a);
       if(obj.style.display == "block") {
               obj.style.display = "none";}
       else {obj.style.display = "block";}
}
function menu_activ_show(a) {
       var obj = document.getElementById(a);
       if(obj.style.display == "block") {
               obj.style.display = "block";}
       else {obj.style.display = "block";}
}

var a;
var b;
function menu_activ(a, b)
{
        var obj = document.getElementById(a);
		var object = typeof(b) != 'undefined' ? document.getElementById(b) : null;

        if(obj.style.display == "block")
        {
            obj.style.display = "none";
            if (object)
            {
				object.style.background = "url(/images/bot_+.gif) no-repeat";
				object.style.backgroundPosition = "0px 5px";
			}
		}
        else
        {
			obj.style.display = "block";
            if (object)
            {
				object.style.background = "url(/images/bot_-.gif) no-repeat";
				object.style.backgroundPosition = "0px 5px";
			}
		}
}