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

function slideup(objname){
        if(moving[objname])
                return;
        if(document.getElementById(objname).style.display == "none")
                return;
        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";
        }
		
		// If the widgets template is included, move widgets during the slide so that they are aligned with their slots - Roshan
		if(widgetList)
			resetWidgetXY();

        return;
}

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

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

		// If the widgets template is included, reset the widget co-ordinates after the slide so that they are aligned with their slots - Roshan
		if(widgetList)
			resetWidgetXY();

        delete(moving[objname]);
        delete(timerID[objname]);
        delete(startTime[objname]);
        delete(endHeight[objname]);
        delete(obj[objname]);
        delete(dir[objname]);
        return;
}

function toggleSlide(objname){
  if(document.getElementById(objname).style.display == "none"){
    slidedown(objname);
  }else{
    slideup(objname);
  }
}

function toggleRowText(anchor){
	if (anchor.innerHTML=="Collapse Row") {
			anchor.innerHTML="Expand Row";
		} else if (anchor.innerHTML=="Expand Row") {
			anchor.innerHTML="Collapse Row";
		} else if (anchor.innerHTML=="Browse Available Widgets"){
			anchor.innerHTML="Hide Available Widgets";
		} else if (anchor.innerHTML=="Hide Available Widgets") {
			anchor.innerHTML="Browse Available Widgets";
		}
}

/*
function toggleImgSrc(img){	
	var last = document.getElementById(img).src.indexOf('.');
	var restored = document.getElementById(img).src.substring(0,(document.getElementById(img).src.length - 9));
	restored = restored + '.gif';
	var newImg = document.getElementById(img).src.substring(0,last);
	newImg = newImg + '-down.gif';
	if( document.getElementById(img).src.match("down"))
	{
		document.getElementById(img).src = restored;
	}
	else
	{
		document.getElementById(img).src = newImg;
	}
}
*/

function toggleImgSrc(anchor){
	if(anchor.className.match("-active"))
	{
		anchor.className = anchor.className.substring(0,(anchor.className.length - 7));
	}
	else
	{
		anchor.className = anchor.className + '-active';
	}
}