var DDSPEED = 2;
var DDTIMER = 2;
var OFFSET = -2;
var ZINT = 100;

function ddMenu(id,d){
var h = document.getElementById(id + '-ddheader');
var c = document.getElementById(id + '-ddcontent');
clearInterval(c.timer);
if(d == 1){
clearTimeout(h.timer);
c.style.display = 'block';
if(c.maxh && c.maxh <= c.offsetHeight){return}
else if(!c.maxh){
c.style.left = (h.offsetWidth + OFFSET) + 'px';
c.style.height = 'auto';
c.maxh = c.offsetHeight;
c.style.height = '0px';
}
ZINT = ZINT + 1;
c.style.zIndex = ZINT;
c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
}else{
h.timer = setTimeout(function(){ddCollapse(c)},50);
}
}

function ddCollapse(c){
c.timer = setInterval(function(){ddSlide(c,-1)},DDTIMER);
}

function cancelHide(id){
var h = document.getElementById(id + '-ddheader');
var c = document.getElementById(id + '-ddcontent');
clearTimeout(h.timer);
clearInterval(c.timer);
if(c.offsetHeight < c.maxh){
c.timer = setInterval(function(){ddSlide(c,1)},DDTIMER);
}
}

function ddSlide(c,d){
var currh = c.offsetHeight;
var dist;
if(d == 1){
dist = Math.round((c.maxh - currh) / DDSPEED);
}else{
dist = Math.round(currh / DDSPEED);
}
if(dist <= 1 && d == 1){
dist = 1;
}
c.style.height = currh + (dist * d) + 'px';
c.style.opacity = currh / c.maxh;
c.style.filter = 'alpha(opacity=' + (currh * 100 / c.maxh) + ')';
if(currh > (c.maxh - 2) && d == 1){
clearInterval(c.timer);
}else if(dist < 1 && d != 1){
clearInterval(c.timer);
c.style.display = 'none';
}
}