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();

var NDCopacity;
var fadeTimer;



var endHeightDynamic;

function getDynamicHeight(objname)
{
//if(!endHeightDynamic)
endHeightDynamic = document.getElementById(objname).scrollHeight;

return endHeightDynamic;
}


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);
		//endHeight[objname] = getDynamicHeight(objname);
        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.opacity = (NDCopacity / 100);
					obj[objname].style.MozOpacity = (NDCopacity / 100);
					obj[objname].style.KhtmlOpacity = (NDCopacity / 100);
					obj[objname].style.filter = "alpha(opacity=" + NDCopacity + ")"; 	
					
					NDCopacity = NDCopacity - 20;
					//alert(NDCopacity);
					

				}
				
				else{
						
                
				
					obj[objname].style.opacity = (NDCopacity / 100);
					obj[objname].style.MozOpacity = (NDCopacity / 100);
					obj[objname].style.KhtmlOpacity = (NDCopacity / 100);
					obj[objname].style.filter = "alpha(opacity=" + NDCopacity + ")"; 	
					
					NDCopacity = NDCopacity + 20;
					//alert(NDCopacity);
					
				}
				obj[objname].style.height = d + "px";
				//alert(NDCopacity);

        }				
		
		
        return;
}

function endSlide(objname){
        clearInterval(timerID[objname]);
		
		
		
		var newOBJLink = objname+"Link"
		
		//alert(newOBJLink);
		
		var oldHTML = "<a href=\"javascript:;\" onmousedown=\"toggleSlide('" +objname+ "');\">Read More</a>";
		//var oldHTML = document.getElementById(objname).value;
		
		var newHTML = "<a href=\"javascript:;\" class=\"gUP\" onmousedown=\"toggleSlide('" +objname+ "');\">Collapse</a>";
		
		

        if(dir[objname] == "up"){
                obj[objname].style.display = "none";
				document.getElementById(newOBJLink).innerHTML = oldHTML;
		}
		
		if(dir[objname] == "down")
			document.getElementById(newOBJLink).innerHTML = newHTML;

        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 toggleSlide(objname){

  
  if(document.getElementById(objname).style.display == "none"){
    // div is hidden, so let's slide down
    slidedown(objname);
	NDCopacity = 0;
	
  }else{
    // div is not hidden, so slide up
    slideup(objname);
	NDCopacity = 100;
  }
  endHeight[objname] = getDynamicHeight(objname);
  fadeTimer = Math.round((endHeight[objname]) / 100)
  //alert(endHeight[objname]);
  
}