var timerlen = 5;
var slideAniLen = 500;
var slideShowing = "sheet";

var timerID = new Array();
var startTime = new Array();
var obj = new Array();
var endHeight = new Array();
//http://www.harrymaugans.com/2007/03/06/how-to-create-an-animated-sliding-collapsible-div-with-javascript-and-css/
var moving = new Array();
var dir = new Array();

//############################
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";

	document.getElementById(slideShowing).style.zIndex="1"; //current div showing

	document.getElementById(objname).style.zIndex="2" //get it on top
        startslide(objname);
}

function slideup(objname){
        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);
}
//###############################new
function startslide(objname){

        obj[objname] = document.getElementById(objname);

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

endHeight[objname] = parseInt(obj[objname].offsetHeight);


obj[objname].style.display = "none";

        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";

	if (endHeight[objname] < "822") //To correct IE6 miscalculation of height
			endHeight[objname] = 822;

        obj[objname].style.height = endHeight[objname] + "px";
	document.getElementById(slideShowing).style.display="none"; //hide previous div
	slideShowing = [objname]; //div now showing
        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);

        return;
}