var timeout         = 100;
var closetimer		= 0;
var ddmenuitem      = 0;

// open hidden layer
function mopen(id) {	
    // cancel close timer
    mcancelclosetime();

    // close old layer
    if(ddmenuitem) { ddmenuitem.style.visibility = 'hidden'; }

    // get new layer and show it
    ddmenuitem = document.getElementById(id);
    ddmenuitem.style.visibility = 'visible';
}

// close showed layer
function mclose() {
    if(ddmenuitem) { ddmenuitem.style.visibility = 'hidden'; }
}

// go close timer
function mclosetime() {
    closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime() {
    if(closetimer) {
        window.clearTimeout(closetimer);
        closetimer = null;
    }
}

// close layer when click-out
document.onclick = mclose; 

function brief(x, str) {
    var ary1 = new Array(
        105,110,102,111,64,
        97,116,101,108,105,101,114,100,101,98,
        114,111,110,46,99,111,109);
            
    var str1 = '';
    for (i=0;i<ary1.length;i++) {
        str1+=String.fromCharCode(ary1[i]);
    }
    var ary2 = new Array(109, 97, 105, 108, 116, 111, 58);
	var str2 = '';
    for (i=0;i<ary2.length;i++) {
        str2+=String.fromCharCode(ary2[i]);
    }
    document.write('<a class="'+x+'" href="'+str2+str1+'">'+str1+'<\/a>');
  }