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 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";
        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);
}

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;
}

function ChangeRedArrowImage(imgName)
{
    var img = document.getElementById(imgName);
    
    if(img.src.toLowerCase().indexOf("down") >= 0)
        img.src = "images/arrow_up.png";
    else
        img.src = "images/arrow_down.png";
}

function ChangeRedArrowImage(imgName)
{
    var img = document.getElementById(imgName);
    
    if(img.src.toLowerCase().indexOf("down") >= 0)
        img.src = "images/arrow_up.png";
    else
        img.src = "images/arrow_down.png";
}


function ChangeRedArrowImage2open(imgName)
{
    var img = document.getElementById(imgName);
	
	document.getElementById('imgArrow').src = "images/arrow-open.jpg";
	document.getElementById('imgArrow2').src = "images/arrow-open.jpg";
	document.getElementById('imgArrow3').src = "images/arrow-open.jpg";
	document.getElementById('imgArrow4').src = "images/arrow-open.jpg";
	document.getElementById('imgArrow5').src = "images/arrow-open.jpg";
	document.getElementById('imgArrow6').src = "images/arrow-open.jpg";
	
	 if(img.src.toLowerCase().indexOf("close") >= 0)
        img.src = "images/arrow-open.jpg";
     else
        img.src = "images/arrow-close.jpg";	
 
   
}





function ChangeRedArrowImageIndex(spnID)
{
    var spn = document.getElementById(spnID);
	spn.innerHTML = "";
	if (spnID == "spn1")
		document.getElementById("spn2").innerHTML = "- Collapse";
	else
		document.getElementById("spn1").innerHTML = "+ Expand";
	
    /*if(img.src.toLowerCase().indexOf("down") >= 0)
        img.src = "Images/V4/red-arrow-up.gif";
    else
        img.src = "Images/V4/red-arrow-down.gif";
	*/
}