var timerlen = 5;
var slideAniLen = 250;

var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
var moving = new Array();
var lastAction = new Array();
var dir = new Array();

function slidedown(objname){
       	lastAction[objname] = "slidedown";
        if(moving[objname]) return;

        if(document.getElementById(objname).style.display != "none")
                return; // cannot slide down something that is already visible

        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname);
}

function slideup(objname){
       	lastAction[objname] = "slideup";
        if(moving[objname]) return;

        if(document.getElementById(objname).style.display == "none")
                return; // cannot slide up something that is already hidden

        moving[objname] = true;
        dir[objname] = "up";
        startslide(objname);
}

function startslide(objname){
        obj[objname] = document.getElementById(objname);

        endHeight[objname] = parseInt(obj[objname].style.height);
        startTime[objname] = (new Date()).getTime();

        if(dir[objname] == "down"){
                obj[objname].style.height = "1px";
        }

        obj[objname].style.display = "block";

        timerID[objname] = setInterval('slidetick(\'' + objname + '\');',timerlen);
}

function slidetick(objname){
        var elapsed = (new Date()).getTime() - startTime[objname];

        if (elapsed > slideAniLen)
                endSlide(objname)
        else {
                var d =Math.round(elapsed / slideAniLen * endHeight[objname]);
                if(dir[objname] == "up")
                        d = endHeight[objname] - d;

                obj[objname].style.height = d + "px";
        }

        return;
}

function endSlide(objname){
        clearInterval(timerID[objname]);
		
		var dirEnded = dir[objname];
        if(dirEnded == "up")
                obj[objname].style.display = "none";

        obj[objname].style.height = endHeight[objname] + "px";

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);
        
        //start pending action??
        if (lastAction[objname] == "slideup" && dirEnded != "up") {
        	slideup(objname);
        }
        
        return;
}


function better_mouseout(e, el, func) {
  if (!e) e = window.event;
  if (!e) return;
  if (el.nodeName != 'DIV') return;
  var reltg = (e.relatedTarget) ? e.relatedTarget : e.toElement;
  while (reltg && reltg != el && reltg.nodeName != 'BODY')
    reltg = reltg.parentNode
  if (reltg == el) return;

  // mouse has left the premises
  func(e, el);
}

//function specific to sadesa menu
function sliderVegOut() {
	debugActions += "\n sliderVegOut";
    slideup('contVeg3');
}

function sliderFootOut() {
	debugActions += "\n sliderFootOut";
    slideup('contFoot3');
}

function sliderUpOut() {
	debugActions += "\n sliderUpOut";
    slideup('contUp3');
}

//variable para debug
var debugActions = "";