/*
function expand(listID){
    var vmenu=document.getElementById("vmenu");
    var uls=vmenu.getElementsByTagName("ul");
    for(i=0;i<uls.length;i++){
        if (uls[i].id==listID)
            uls[i].className="block";
        else
            uls[i].className="none";
    }
}
*/

function hidedivs(){
    var arr = document.getElementsByTagName('mdiv')
    for(var i=0; i<arr.length;i++){
        arr[i].style.display = (arr[i].style.display == 'block')? 'none':'block';
    }
}

function hidediv(divId){
    var arr = document.getElementById(divId);
    if ( arr!= null ) {
        arr.style.display = (arr.style.display == 'none')? 'block':'none';
    }
}