var timerlen = 1;
var slideAniLen = 500;

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

function slidedown(objname, objectWidth, startWid){
        if(moving[objname])
                return;

        //if(document.getElementById(objname).style.display != "none")
                //return; // cannot slide down something that is already visible
		objWidth[objname]=objectWidth
		startWidth[objname]=startWid
        moving[objname] = true;
        dir[objname] = "down";
        startslide(objname);
}

function slideup(objname, objectWidth, startWid){
        if(moving[objname])
                return;

        //if(document.getElementById(objname).style.display == "none")
               // return; // cannot slide up something that is already hidden
		startWidth[objname]=startWid
		objWidth[objname]=objectWidth
        moving[objname] = true;
        dir[objname] = "up";
        startslide(objname);
}

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

         endHeight[objname] = objWidth[objname]
        startTime[objname] = (new Date()).getTime();

        if(dir[objname] == "down"){
			
                obj[objname].style.width = startWidth[objname] +"px";
				
        }

        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;
				if(d<startWidth[objname])
					d = startWidth[objname]
						

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

        return;
}

function endSlide(objname){
        clearInterval(timerID[objname]);

        if(dir[objname] == "down")
             obj[objname].style.width = endHeight[objname] + "px";
 		if(dir[objname] == "up")
        obj[objname].style.width = startWidth[objname] + "px";

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);
		delete(startWidth[objname]);
		delete(objWidth[objname]);

        return;
}// JavaScript Document