var timerlen = 5;
var slideAniLen = 120;

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


 function toggleSliderFunc(objname) {
            if (document.getElementById(objname).style.display != "none") {
                moving[objname] = true;
                dir[objname] = "up";
                startslide(objname);

            }
            if (document.getElementById(objname).style.display == "none") {
                moving[objname] = true;
                dir[objname] = "down";
                startslide(objname);

            }
        }

function slidedown(objname){
        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){
var obj=document.getElementById(objname);
 var zxcevt=window.event||arguments.callee.caller.arguments[0];
if (!zxcCkEventObj(zxcevt,obj)) return;
        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 zxcCkEventObj(zxce,zxcp){
 if (!zxce) var zxce=window.event;
 zxce.cancelBubble=true;
 if (zxce.stopPropagation) zxce.stopPropagation();
 if (zxce.target) zxceobj=zxce.target;
 else if (zxce.srcElement) zxceobj=zxce.srcElement;
 if (zxceobj.nodeType==3) zxceobj=zxceobj.parentNode;
 var zxceobj=(zxce.relatedTarget)?zxce.relatedTarget:(zxce.type=='mouseout')?zxce.toElement:zxce.fromElement;
 if (!zxceobj||zxceobj==zxcp) return false;
 while (zxceobj.parentNode){
  if (zxceobj==zxcp) return false;
  zxceobj=zxceobj.parentNode;
 }
 return true;
}

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]);

        if(dir[objname] == "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]);

        return;
}