var uniquepageid=window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, "");   
  
function animatedcollapse(divId, animatetime, persistexpand, initstate){   
    this.divId=divId;   
    this.divObj=document.getElementById(divId);   
    this.divObj.style.overflow="hidden";   
    this.timelength=animatetime;   
    this.initstate=(typeof initstate!="undefined" && initstate=="block")? "block" : "contract";   
    this.isExpanded=animatedcollapse.getCookie(uniquepageid+"-"+divId);   
    this.contentheight=parseInt(this.divObj.style.height);   
    var thisobj=this;   
    if (isNaN(this.contentheight)){    
        animatedcollapse.dotask(window, function(){thisobj._getheight(persistexpand)}, "load");   
        if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes" && this.isExpanded!="")    
            this.divObj.style.visibility="hidden";   
    }   
    else if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes" && this.isExpanded!="")   
        this.divObj.style.height=0;   
    if (persistexpand)   
        animatedcollapse.dotask(window, function(){animatedcollapse.setCookie(uniquepageid+"-"+thisobj.divId, thisobj.isExpanded)}, "unload");   
}   
  
animatedcollapse.prototype._getheight=function(persistexpand){   
    this.contentheight=this.divObj.offsetHeight;   
    if (!persistexpand && this.initstate=="contract" || persistexpand && this.isExpanded!="yes"){   
        this.divObj.style.height=0;   
        this.divObj.style.visibility="visible";   
    }   
    else       
        this.divObj.style.height=this.contentheight+"px";   
}   
  
animatedcollapse.prototype._slideengine=function(direction){   
    var elapsed=new Date().getTime()-this.startTime;   
    var thisobj=this;   
    if (elapsed<this.timelength){   
        var distancepercent=(direction=="down")? animatedcollapse.curveincrement(elapsed/this.timelength) : 1-animatedcollapse.curveincrement(elapsed/this.timelength);   
      this.divObj.style.height=distancepercent * this.contentheight +"px";   
      this.runtimer=setTimeout(function(){thisobj._slideengine(direction)}, 10);   
    }   
    else{   
        this.divObj.style.height=(direction=="down")? this.contentheight+"px" : 0;   
        this.isExpanded=(direction=="down")? "yes" : "no";   
        this.runtimer=null;   
    }   
}   
  
  
animatedcollapse.prototype.slidedown=function(){   
    if (typeof this.runtimer=="undefined" || this.runtimer==null){   
        if (isNaN(this.contentheight))   
            alert("Please wait until document has fully loaded then click again");   
        else if (parseInt(this.divObj.style.height)==0){   
            this.startTime=new Date().getTime();   
            this._slideengine("down");   
        }   
    }   
}   
  
animatedcollapse.prototype.slideup=function(){   
    if (typeof this.runtimer=="undefined" || this.runtimer==null){   
        if (isNaN(this.contentheight))   
            alert("Please wait until document has fully loaded then click again");   
        else if (parseInt(this.divObj.style.height)==this.contentheight){   
            this.startTime=new Date().getTime();   
            this._slideengine("up");   
        }   
    }   
}   
  
animatedcollapse.prototype.slideit=function(){   
    if (isNaN(this.contentheight))   
        alert("Please wait until document has fully loaded then click again");   
    else if (parseInt(this.divObj.style.height)==0)   
        this.slidedown();   
    else if (parseInt(this.divObj.style.height)==this.contentheight)   
        this.slideup();   
}   
  
animatedcollapse.curveincrement=function(percent){   
    return (1-Math.cos(percent*Math.PI)) / 2;   
}   
  
animatedcollapse.dotask=function(target, functionref, tasktype){    
    var tasktype=(window.addEventListener)? tasktype : "on"+tasktype;   
    if (target.addEventListener)   
        target.addEventListener(tasktype, functionref, false);   
    else if (target.attachEvent)   
        target.attachEvent(tasktype, functionref);   
}   
  
animatedcollapse.getCookie=function(Name){    
    var re=new RegExp(Name+"=[^;]+", "i");   
    if (document.cookie.match(re))   
        return document.cookie.match(re)[0].split("=")[1];   
    return "";   
}   
  
animatedcollapse.setCookie=function(name, value){   
  document.cookie = name+"="+value;   
}